Personal Details

Name: Hossein Afshin

Position: Professor

Postal Address

• School of Mechanical Engineering, Sharif University of Technology, Tehran, Iran

Phone Numbers:

• Work: +98 21 6616 5530 (Office)

E-mail: afshin@sharif.edu, h.afshin@gmail.com

Home page 1: sharif.ir/~afshin/

Home page2: Sharif University of Technology

Research Gate: https://www.researchgate.net/profile/Hossein_Afshin/info

Higher Education

• PhD., 2004-2009         Sharif University of Technology, School of Mechanical Engineering, PhD;

Thesis topic: "Experimental and Numerical Study on Particle- Laden Flows", Supervisor: Prof. B. Firoozabadi.

• M.Sc., 2002-2004       Sharif University of Technology, School of Mechanical Engineering, MSc;

Thesis topic: "Experimental and Numerical Simulation of Three-Way Catalyst Converter", Supervisor: Prof. M.H. Saidi.

Statement of Research Interests

• Experiment Research on fluid structure;

• Industrial & tunnel Ventilation;

• Air pollution Modeling;

• Particle-laden flows;

• Experiment Research on turbulence structure;

• Numerical Modeling of Turbulent flows;

• Numerical and Experimental analysis of Two-Phase Flows;

• Heat Exchanger Design;

• Cryogenic Heat Exchanger

• Cryogenic Heat Pipe

• Multi-stream Cryogenic plate-fin Heat Exchangers

• Condensation of Helium at 4 K

• Evaporative Cooling for Air Conditioning

• Mixed Gas Refrigerants for Joule-Thomson Cryocoolers

Teaching Interests,

• Advance Fluid Mechanics;

• Advance Mathematics;

• Advance Thermodynamics;

• Boundary Layer Theory;

• Computational Fluid Dynamics;

• Convection Heat Transfer;

• Heat Exchangers Design;

• Thermodynamics;

• Heat Transfer;

• Fluid Mechanics;

Experiences

• Director of Sharif Subway Environmental Design Team for ventilation system for line #2 at Isfahan subway, Sharif University of Technology, since 2019-2021.

• Director of Sharif Subway Environmental Design Team for ventilation system for line #3 at Tehran subway, Sharif University of Technology, since 2013-2016.

• Fire simulation in subway tunnel (using Fluent software) and generation of emergency scenarios for line#3 Tehran subway, Sharif University of Technology, since 2014-2016.

• Feasibility study of the ventilation system of Niayesh Tunnel, 2013,

• Fire simulation in Niayesh tunnel and generation of emergency scenarios for Evaluation and optimization of the ventilation system design of This Tunnel, 2013

• Feasibility study of the ventilation system of Amirkabir Tunnel, 2013,

• Fire simulation in Amirkabir tunnel and generation of emergency scenarios for Evaluation and optimization of the ventilation system design of This Tunnel, 2013,

• Evaluation and redesign of the ventilation system of Tohid Tunnel, 2012,

• Director of Sharif Subway Environmental Design Team for ventilation system for line #4 at Tehran subway, Sharif University of Technology, since 2008-2011.

• Fire simulation in subway tunnel (using Fluent software) and generation of emergency scenarios for line#4 Tehran subway, Sharif University of Technology, since 2008-2011.

• Evaluation and optimization of the ventilation system design of Line#1 at Tabriz Subway, 2011,

• Design of shell & Tube Heat Exchangers for semi-industrial Ethanol production, (using Aspen-B-Jac Software), research consortium in Sharif University, 2009.

•  Combustion simulation of Gas, Light oil, Dual Fuel and Heavy Oil burners to give minimum air pollution, maximum fuel utilization and excellent combustion efficiency, research project at Isfahan University of Technology, 2004-2005.

•  Design and simulation of combustion in combustion chamber of Gas turbo-compressors in gas compressor stations, research project at Isfahan University of Technology, 2006-2007.

•  Simulation of boiler combustion chamber of boiler to improve burner operation and decrease air pollution, research project at Isfahan University of Technology, 2007-2008.

•  Director of Sharif Metro Design Team for designing car body of national subway train, Sharif University of Technology, since 2007.

•  Stress, Bulking, Vibration and Fatigue analyses of car body of national subway (using Ansys Software), research project at Sharif University of Technology, 2008.

Publications

A-Journal papers

1.      H Zoghi, S Jafari, B Farhanieh, H Afshin, A Kazemipour, (2021), "Smoke extraction improvement of mid-tunnel shaft by a slim board beneath the shaft and bevel-angle connection", Tunnelling and Underground Space Technology 118, 104164.

2.      S Parsa, E Mohammadian, H Afshin, B Farhanieh, (2021), "Investigating the Effect of Opening Aspect Ratio and Combustion Source Conditions on Behavior of Backdraft Phenomenon by Large Eddy Simulation", Journal of Solid and Fluid Mechanics 11 (3), 165-179.

3.      M Abdolmaleki, A Mashhadian, S Amiri, V Esfahanian, H Afshin, (2021), "Numerical-Experimental Geometric Optimization of the Ahmed Body and Analyzing Boundary Layer Profiles", Journal of Optimization Theory and Applications, 1-35.

4.      A Eghtesad, H Afshin, SK Hannani, (2021), "Energy, exergy, exergoeconomic, and economic analysis of a novel power generation cycle integrated with seawater desalination system using the cold energy of liquified natural gas", Energy Conversion and Management 243, 114352.

5.      H Savalanpour, B Farhanieh, H Afshin, (2021), "Proposing a general formula to calculate the critical velocities in tunnels with different cross-sectional shapes", Tunnelling and Underground Space Technology 110, 103798.

6.      H Savalanpour, B Farhanieh, H Afshin, "Effects of False-Ceiling on Critical Ventilation Velocity and Maximum Gas Temperature in Tunnel Fires", Journal of Applied Fluid Mechanics 14 (2).

7.      P Dastyar, MS Salehi, B Firoozabadi, H Afshin, (2021), "Influences of Polymer-Surfactant Interaction on the Drop Formation Process: An Experimental Study", Langmuir 37 (3), 1025-1036.

8.      M Mahmoudabadbozchelou, A Eghtesad, S Jamali, H Afshin, (2020), "Entropy analysis and thermal optimization of nanofluid impinging jet using artificial neural network and genetic algorithm", International Communications in Heat and Mass Transfer 119, 104978.

9.      AM Abolmaali, H Afshin, (2020), "Numerical study of heat transfer between shell-side fluid and shell wall in the spiral-wound heat exchangers", International Journal of Refrigeration 120, 285-295.

10.   F Tajeddini, MR Nikmaneshi, B Firoozabadi, HA Pakravan, (2020), "High precision invasive FFR, low‐cost invasive iFR, or non‐invasive CFR?: optimum assessment of coronary artery stenosis based on the patient‐specific computational models", International Journal for Numerical Methods in Biomedical Engineering 36 (10).

11.   N Najafpour, H Afshin, B Firoozabadi, (2020), "Dust concentration over a semi-arid region: Parametric study and establishment of new empirical models", Atmospheric Research 243, 104995.

12.   P Dastyar, MS Salehi, B Firoozabadi, H Afshin, (2020), "Experimental investigation of the effects of surfactant on the dynamics of formation process of liquid drops", Journal of Industrial and Engineering Chemistry 89, 183-193.

13.   M Mahmoudabadbozchelou, MA Larijani, H Afshin, (2020), "An economic approach to study and optimize helium liquefier", Cryogenics 110, 103147.

14.   SM Hosseinian, AM Abolmaali, H Afshin, (2020), "An analytical method for spiral-wound heat exchanger: design and cost estimation considering temperature-dependent fluid properties", International Journal of Numerical Methods for Heat & Fluid Flow.

15.   M Shahsavari, MR Oshaghi, H Afshin, B Firoozabadi, (2020), "Homotopy perturbation method for unsteady motion of a single bubble in a highly viscous liquid", Chemical Engineering Communications, 1-17.

16.   A Eghtesad, M Salakhi, H Afshin, SK Hannani, (2020), "Numerical investigation and optimization of indirect freeze desalination", Desalination 481, 114378.

17.   A Hamidi, M Oshaghi, H Afshin, B Firoozabadi, (2020), "Experimental Investigation of Various Regimes of Bubble Formation and Growth—A Theoretical View of Double Coalescence Regime", Journal of Fluids Engineering 142 (4).

18.   M Abdolmaleki, E Mohammadian Bishe, H Afshin, B Farhanieh, (2020), "Numerical and experimental study of a reversible axial flow fan", International Journal of Computational Fluid Dynamics 34 (3), 173-186.

19.   B Lak, A Azadi, B Firoozabadi, H Afshin, (2020), "Evaluation of the Effects of Inlet Conditions on Particle-Laden Flows in Secondary Sedimentation Tanks", Journal of Environmental Engineering 146 (3), 04020004.

20.   A Kazemipour, H Afshin, B Farhanieh, M Pourghasemi, (2020), "A Comprehensive Study on the Critical Ventilation Velocity in Tunnels with Different Geometries", INTERNATIONAL JOURNAL OF VENTILATION 14 (1), 303.

21.   M Karmozdi, H Afshin, MB Shafii, (2020), "Electrical analogies applied on MMR micropump", Sensors and Actuators A: Physical 301, 111675.

22.   MS Salehi, H Afshin, B Firoozabadi, (2019), "Numerical investigation of dynamics of drop motion using lattice Boltzmann method", Journal of Molecular Liquids 296, 111926.

23.   MA Larijani, M Eslami, H Afshin, (2019), "Investigation of Effective Parameters on the Performance of the Helium Liquefaction Cycle", Journal homepage: http://iieta. org/journals/ijht 37 (4), 1009-1018.

24.   A Eghtesad, M Mahmoudabadbozchelou, H Afshin, (2019), "Heat transfer optimization of twin turbulent sweeping impinging jets", International Journal of Thermal Sciences 146, 106064.

25.   MR Oshaghi, H Afshin, B Firoozabadi, (2019), "Investigation of bubble formation and its detachment in shear-thinning liquids at low capillary and Bond numbers", Theoretical and Computational Fluid Dynamics 33 (5), 463-480.

26.   S Gohardehi, H Afshin, B Farhanieh, (2019), "Investigation of the transient growth in plane jet by non-modal stability analysis", Fluid Dynamics Research 51 (5), 055511.

27.   MA Larijani, M Bayat, H Afshin, (2019), "Simulation and performance improvement of cryogenic distillation column, using enhanced predictive Peng-Robinson equation of state", Fluid Phase Equilibria 489, 117-130.

28.   AM Abolmaali, H Afshin, (2019), "Development of Nusselt number and friction factor correlations for the shell side of spiral-wound heat exchangers", International Journal of Thermal Sciences 139, 105-117.

29.   MR Oshaghi, M Shahsavari, H Afshin, B Firoozabadi, (2019), "Experimental investigation of the bubble motion and its ascension in a quiescent viscous liquid", Experimental Thermal and Fluid Science 103, 274-285.

30.   H Savalanpour, B Farhanieh, H Afshin, (2019), "Numerical simulation to investigate the induced buoyant flow characteristics caused by intensive heat in complex curvilinear geometries", Heat Transfer—Asian Research 48 (3), 835-853.

31.   M Abdolmaleki, H Afshin, B Farhanieh, (2019), "Performance analysis of elliptic-profile airfoil cascade for designing reversible axial flow fans", AIAA Journal 57 (4), 1492-1501.

32.   MA Bijarchi, A Eghtesad, H Afshin, MB Shafii, (2019), "Obtaining uniform cooling on a hot surface by a novel swinging slot impinging jet", Applied Thermal Engineering 150, 781-790.

33.   A Farizan, S Yaghoubi, B Firoozabadi, H Afshin, (2019), "Effect of an obstacle on the depositional behaviour of turbidity currents", Journal of Hydraulic Research 57 (1), 75-89.

34.   S Gohardehi, S Arablu, H Afshin, B Farhanieh, (2019), "Investigation of the effect of turbulence intensity and nozzle exit boundary layer thickness on stability pattern of subsonic jet", Mechanics & Industry 20 (1), 103

35.   M Karmozdi, MB Shafii, H Afshin, (2018), "The effect of droplet size, channel length and the amount of electromagnetic actuation force on reciprocating movement of mercury droplets in the magneto mercury reciprocating", Sensors and Actuators A: Physical 283, 204-210.

36.   GH Farrahi, M Chamani, KR Kashyzadeh, A Mostafazade, AH Mahmoudi, (2018), "Failure analysis of bolt connections in fired heater of a petrochemical unit", Engineering Failure Analysis 92, 327-342.

37.   MS Salehi, MT Esfidani, H Afshin, B Firoozabadi, (2018), "Experimental investigation and comparison of Newtonian and non-Newtonian shear-thinning drop formation", Experimental Thermal and Fluid Science 94, 148-158.

38.   N Najafpour, H Afshin, B Firoozabadi, (2018), "The 20-22 february 2016 mineral dust event in Tehran, Iran: Numerical modeling, remote sensing, and in situ measurements", Journal of Geophysical Research: Atmospheres 123 (10), 5038-5058.

39.   S.H. Habibian, A. Mostafazade Abolmaali, H. Afshin, (2018), "Numerical Investigation of the effects of fin shape, antifreeze and nanoparticles on the performance of compact finned-tube heat exchangers for automobile radiator", Applied Thermal Engineering, 133(25), 248-260.

40.   Omid Adibi, Bijan Farhanieh, Hossein Afshin, (2017), "Numerical study of heat and mass transfer in underexpanded sonic free jet", International Journal of Heat and Technology, 35(4), 959-968.

41.   Mohamad Taghi Esfidani, Mohammad Reza Oshaghi, Hossein Afshin, Bahar Firoozabadi, (2017), "Modeling and Experimental Investigation of Bubble Formation in Shear-Thinning Liquids", Journal of Fluids Engineering, ASME, 139(7), 071302-1-9. FE-16-1306; doi: 10.1115/1.4036158.

42.   Sina Yaghoubi, Hossein Afshin, Bahar Firoozabadi, Ahmadreza Farizan, (2017), "Experimental Investigation of the Effect of Inlet Concentration on the Behavior of Turbidity Currents in the Presence of Two Consecutive Obstacles", Journal of Waterway, Port, Coastal, and Ocean Engineering, 143(2), 04016018-1-12.

43.   Omid Adibi, Amin Azadi, Bijan Farhanieh, Hossein Afshin, (2017), "A parametric study on the effects of surface explosions on buried high pressure gas Pipelines", Engineering Solid Mechanics, 5(4), 225-244.

44.   Maryam Moradpour, Hossein Afshin, Bijan Farhanieh, (2017), "A numerical study of reactive pollutant dispersion in street canyons with green roofs", Building Simulation, 11(1), 125-138.

45.   Ali Kazemipour, Hossein Afshin & Bijan Farhanieh, (2017), "Numerical-Analytical Assessment of Fire and Ventilation Interaction in Longitudinally Ventilated Tunnels Using Jet Fans", Heat Transfer Engineering, 38(5), 523-537.

46.   Maryam Moradpour, Hossein Afshin*, Bijan Farhanieh, (2017), "A numerical investigation of reactive air pollutant dispersion in urban street canyons with tree planting", Atmospheric Pollution Research, 8(2), 253-266.

47.   Hossein Shahbazi, Masoud Reyhanian, Vahid Hosseini, Hossein Afshin, (2016), "The Relative Contributions of Mobile Sources to Air Pollutant Emissions in Tehran, Iran: an Emission Inventory Approach", Emission Control Science and Technology, 2:44-56.

48.   N. Mohammadaliha, H. Afshin and B. Farahanieh,, (2016), "Numerical Investigation of Nozzle Geometry Effect on Turbulent 3-D Water Offset Jet Flows", Journal of Applied Fluid Mechanics, 9(4), 2083-2095.

49.   A. Kazemipour, M. Pourghasemi, H. Afshin* and B. Farhanieh, (2016), "Investigation of Fire Growth and Spread in a Model-Scale Railcar Using an Applied Approach", Journal of Applied Fluid Mechanics, 9(1), 279-292.

50.   M. Jafari, H. Afshin, B. Farhanieh and H. Bozorgasareh, "Experimental and Numerical Investigation of a 60cm Diameter Bladeless Fan", Journal of Applied Fluid Mechanics, 9(2), 935-944.

51.   Mohammad Jafari, Hossein Afshin, Bijan Farhanieh, Atta Sojoudi, (2016), "Numerical investigation of geometric parameter effects on the aerodynamic performance of a Bladeless fan", Alexandria Engineering Journal, 55, 223-233.

52.   Hossein Shahbazi, Sina Taghvaee, Vahid Hosseini, Hossein Afshin, (2016), "A GIS based emission inventory development for Tehran", Urban Climate 17, 216-229.

53.   Sina Salehi, Hossein Afshin, Bijan Farhanieh, (2015), "Numerical Investigation of the Inlet Baffle, Header Geometry, and Triangular Fins Effects on Plate-Fin Heat Exchangers Performance", Heat Transfer Engineering, 36(16):1397-1408.

54.   M. Jafari, H. Afshin*, B. Farhanieh and H. Bozorgasareh, (2015), "Numerical Aerodynamic Evaluation and Noise Investigation of a Bladeless Fan", Journal of Applied Fluid Mechanics, 8(1), 133-142.

55.   Sepideh Esmaeili Rad, Hossein Afshin, Bijan Farhanieh, (2015) "Heat Transfer Enhancement in Shell-and-Tube Heat Exchangers Using Porous Media", Heat Transfer Engineering, 36(3):262-277.

56.   Ali Kazemipour, Hossein Afshin, Bijan Farhanieh, (2015), "A Comprehensive Study on the Critical Ventilation Velocity in Tunnels with Different Geometries", International Journal of Ventilation, 14(3), 303-320.

57.   N. Najafpour, M. Samie, B. Firoozabadi and H. Afshin, (2014), "Theoretical and experimental investigation of density jump on an inclined surface", Scientia Iranica B, 21(5), 1655{1665

58.   Maziar Mohammadi, Mehdi Taslimifar, Shahab Haghayegh, Siamak Kazemzadeh Hannani, Mohammad Behshad Shafii, Mohammad Hassan Saidi & Hossein Afshin, (2014), "Open-Loop Pulsating Heat Pipes Charged With Magnetic Nanofluids: Powerful Candidates for Future Electronic Coolers", Nanoscale and Microscale Thermophysical Engineering,18(1),  18-38, DOI:10.1080/15567265.2013.787570.

59.   Maziar Mohammadi, Mehdi Taslimifar, Mohammad Hassan Saidi, Mohammad Behshad Shafii, Hossein Afshin & Siamak Kazemzadeh Hannani, (2014), "Ferrofluidic Open Loop Pulsating Heat Pipes: Efficient Candidates for Thermal Management of Electronics", Experimental Heat Transfer, 27(3), 296-312, DOI:10.1080/08916152.2013.782377.

60.   Ehsan Khavasi, Bahar Firoozabadi, Hossein Afshin, (2013), "Linear analysis of the stability of particle-laden stratified shear layers", Canadian Journal of Physics, 91: 1-13, 10.1139/cjp-2013-0028,

61.   Mohammad Reza Oshaghi, Hossein Afshin, Bahar Firoozabadi, (2013), "Experimental investigation of the effect of obstacles on the behavior of turbidity currents", Canadian Journal of Civil Engineering, 40(4): 343-352, 10.1139/cjce-2012-0429.

62.   Mehdi Taslimifar, Maziar Mohammadi, Hossein Afshin, Mohammad Hassan Saidi, Mohammad Behshad Shafii, (2013), "Overall thermal performance of ferrofluidic open loop pulsating heat pipes: An experimental approach", International Journal of Thermal Sciences, 65: 234-241.

63.   Maysam Saidi, Reza Maddahian, Bijan Farhanieh, Hossein Afshin, (2012),  "Modeling of flow field and separation efficiency of a deoiling hydrocyclone using large eddy simulation", International Journal of Mineral Processing, 112-113: 84-93.

64.   M. Aminzadeh, A. Maleki, B. Firoozabadi,, H. Afshin, (2012), "On the motion of Newtonian and non-Newtonian liquid drops", Scientia Iranica, 19,(5):1265-1278.

65.   Ehsan Khavasi, Hossein Afshin, Bahar Firoozabadi, "Effect of selected parameters on the depositional behaviour of turbidity currents", Journal of Hydraulic Research, 2011.

66.   Hafez Asgharzadeh and Bahar Firoozabadi and Hossein Afshin "Experimental investigation of effects of baffle configurations on the performance of a secondary sedimentation tank", Scientia Iranica, Volume, Number, 2011.

67.   Hafez Asgharzadeh and Bahar Firoozabadi and Hossein Afshin "Experimental and Numerical Simulation of the Effect of Particles on Flow Structures in Secondary Sedimentation Tanks", JAFM, Volume 6, Number 1, January 2013.

68.   M. Mahdinia, B. Firoozabadi, M. Farshchi, A. Ghasemi Varnamkhasti, H. Afshin, "Large Eddy Simulation of Lock-Exchange Flow in a Curved Channel", Submitted 17 September 2010; accepted 1 July 2011; posted ahead of print 4 July 2011

69.   Zahra Nourmohammadi, Hossein Afshin, Bahar Firoozabadi, "Experimental observation of the flow structure of turbidity currents", Journal of Hydraulic Research, Vol. 49, No. 2, 2011.

70.   Bahar Firoozabadi, Hossein Afshin, Ehsan Aram, "Three-Dimensional Modeling of Density Current in a Straight Channel", Journal of Hydraulic Engineering, ASCE, Vol. 135, No. 5, May 1, 2009.

71.   Bahar Firoozabadi, Hosein Afshin and Javad Sheikhi, "Experimental Investigation of Single Value Variables of Three-Dimensional Density Current", Canadian Journal of Physics, Vol. 87, issue 2 pp. 125-134, 2009.

72.   Bahar Firoozabadi, Hosein Afshin and Ali Bagherpour, "Experimental Investigation of Turbulence Specifications of Turbidity Currents". Journal of Applied Fluid Mechanics, Vol. 3, No. 1, 2009.

73.   Hosein Afshin, Bahar Firoozabadi and Manoucher Rad "Hydrodynamics Analysis of Density Current Using k-ω Turbulence Model", IJE, Vol. 21-3-B - 1, pp. 211-226, 2008.

B- International Conference Papers

1.    Ahmad Soori, Rouhollah Ganjiazad, Hossein Afshin, Bijan Farhanieh, "Numerical Simulation of Fire in the Buses", 4th National Industrial Ventilation and Hygiene Conference (IVHC 2014), Tehran, Iran, Oct 17-20, 2014, Tehran, Iran; 10/2014.

2.    Rouhollah Ganjiazad, Hossein Afshin, Bijan Farhanieh, "Effect of Tunnel Slope on the Performance of Saccardo Ventilation System in order to Dilute Pollutants of a Fire Incident in an Urban Tunnel", 4th National Industrial Ventilation and Hygiene Conference (IVHC 2014), Oct 17-20, 2014, Tehran, Iran; 10/2014.

3.    Rouhollah Ganjiazad, Ali Kazemipour, Hossein Afshin, Bijan Farhanieh, "Numerical Studies on the Performance of Saccardo Ventilation System in Emergency Fire Scenarios", The 2nd International Conference on Mechatronics and Computational Mechnics (ICMCM 2013), Frankfurt, Germany, Dec 30-31, 2013, Frankfurt, Germany; 12/2013.

4.    Atta Sojoodi, Rouhollah Ganjiazad, Hossein Afshin, Bijan Farhanieh, "Comparative Study of Carbon Monoxide and Temperature Distribution in a Horizontal Tunnel with Fire Incident", 21st International Conference of Iran Mechanical Engineering (ISME 2013), May 7-9, 2013, Tehran, Iran; 05/2013.

5.    Rouhollah Ganjiazad, Pezhman Amiri, Atta Sojoodi, Mohammad Jafari, Hossein Afshin, Bijan Farhanieh, "Optimization of Jet Fan Pitch Angle in Fire Incidents in a Longitudinally Ventilated Tunnel", 3rd National Industrial Ventilation and Hygiene Conference (IVHC 2012), Dec. 2-3, 2012, Tehran, Iran; 12/2012.

6.    Atta Sojoodi, Hamidreza Bozorgasareh, Rouhollah Ganjiazad, Hossein Afshin, Bijan Farhanieh, "Longitudinal Distribution of Carbon Monoxide and Temperature in Fire Incidents in a Tunnel with Longitudinal Ventilation", 3rd National Industrial Ventilation and Hygiene Conference (IVHC 2012), Dec. 2-3, 2012, Tehran, Iran; 12/2012.

7.     Pezhman Amiri, Rouhollah Ganjiazad, Hossein Afshin, Bijan Farhanieh, "Investigation on Different Fire Fighting Scenarios for a Closed Compartment with the Probable Occurrence of Backdraft", 3rd National Industrial Ventilation and Hygiene Conference (IVHC 2012), Dec. 2-3, 2012, Tehran, Iran; 12/2012.

8.    Seyyed Mahdi Nemati Mehr, Hossein Afshin, "Numerical Simulation of NOx Pollutant Formation in a Natural Gas Fired Power Generation Boiler, by Using Burner's Parameters", ASME 2012 International Mechanical Engineering Congress and Exposition; 11/2012.

9.    Maysam Saidi, Reza Maddahian, Bijan Farhanieh, Hossein Afshin, "Separation Efficiency of Deoiling Hydrocyclones Using Particle Tracking", International Conference on Mechanical Engineering and Advanced Technology; 10/2012.

10. Mehdi Taslimifar, Maziar Mohammadi, Ali Adibnia, Hossein Afshin, Mohammad Hassan Saidi, Mohammad Behshad Shafii, Siamak Kazemzadeh Hannani, "Effects of Surface Coating of Nanoparticles on Thermal Performance of Open Loop Pulsating Heat Pipes", ASME 2012 Heat Transfer Summer Conference collocated with the ASME 2012 Fluids Engineering Division Summer Meeting and the ASME 2012 10th International Conference on Nanochannels, Microchannels, and Minichannels; 07/201.

11. Maziar Mohammadi, Mehdi Taslimifar, Siamak Kazemzadeh Hannani, Mohammad Hassan Saidi, Hossein Afshin, Mohammad Behshad Shafii, "Experimental Study of the Startup Performance of Ferrofluidic Open Loop Pulsating Heat Pipes", ASME 2012 Heat Transfer Summer Conference collocated with the ASME 2012 Fluids Engineering Division Summer Meeting and the ASME 2012 10th International Conference on Nanochannels, Microchannels, and Minichannels; 07/2012.

12. Maziar Mohammadi, Mehdi Taslimifar, Mohammad Hassan Saidi, Mohammad Behshad Shafii, Hossein Afshin, Siamak Kazemzadeh Hannani, "Experimental Investigation of an Open Loop Pulsating Heat Pipe Using Ferrofluid", ASME 2012 Third International Conference on Micro/Nanoscale Heat and Mass Transfer; 03/2012

13.  Mehdi Taslimifar, Maziar Mohammadi, Mohammad Hassan Saidi, Hossein Afshin, Mohammad Behshad Shafii, Siamak Kazemzadeh Hannani, "Thermal Performance of an Open Loop Pulsating Heat Pipe With Ferrofluid (Magnetic Nano-Fluid)", ASME 2012 Third International Conference on Micro/Nanoscale Heat and Mass Transfer; 03/2012

14. Shoaei M., Maddahian, R., Afshin H. and Farhanieh B.,"Exergy Analysis of Air Handling Unit System in Subway", International Conference on Fluid Dynamics and Thermodynamics, January 2011, Dubai.

15. M. Shoaei,R. Maddahin, H. Afshin and B. Farhanie, "Designing Fire Scenarios for Subway Stations and Tunnels Based on Regional Approach", 2^nd International Conference on Mechanical, Industrial, and Manufacturing Technologies, February 26-28, 2011, Singapore.

16.  Aminzadeh, M., Maleki Zamenjani, A., Firoozabadi, B., and Afshin, H., "Experimental Investigation of Rising of Newtonian and non-Newtonian Droplets in a viscous Fluid", 21^st International Symposium on Transport Phenomena, ISTP-21, 2-5 November, 2010, Kaohsiung City, Taiwan.

17.  Farhanieh, B., Afshin, H., FaghaniNia, A., Ghahramanpour, S., "Modeling, Simulation & Optimization of Solar Thermal Power Plant", 21^st International Symposium on Transport Phenomena, ISTP-21, 2-5 November, 2010, Kaohsiung City, Taiwan.

18. Firoozabadi, B., Jamshidnia, H. R., Hooshmand, A., Afshin, H., "ADV MeasuremenT of Flow in Sedimentation Basins" Proceedings of the 12th Asian Congress of Fluid Mechanics 18-21 August 2008, Daejeon, Korea.

19. Hoshmand, A., Asgharzadeh, H., Afshin, H., Firoozabadi, B., "Behavior of Baffle in Sedimentation Basins", Proceedings of IMECE08 2008 ASME International Mechanical Engineering Congress and Exposition October 31 - November 6, 2008, Boston, Massachusetts, USA.

20. Afshin, H., Rezaeian, N., Firoozabadi, B., "Fluctuations of Sediment Concentration in the Sediment-Laden Density Current", American Institute of Aeronautics and Astronautics, 126279, AIAA2008.

21. Emami, M.D., Pourarian, S., Afshin, H., Ziaei-Rad, S., "Numerical Simulation of a 200 Mw Industrial Boiler", Proceedings of the 12th Asian Congress of Fluid Mechanics 18-21 August 2008, Daejeon, Korea.

22. Bagherpour, A., Afshin, H. and Firoozabadi, B., "Experimental Study of Turbulence Characteristics of Three-Dimensional Turbidity Currents" ICHE2008, Japan.

23. Firoozabadi, B., Afshin, H. and Rezaeian, N., "Experimental Comparison of Different Characteristic Variables in Three-Dimensional Turbidity Currents" ICHE2008, Japan.

24. Keshtkar, S., Ayyoubzadeh, S. A., Firoozabadi, B., Afshin, H. "Experimental Study of Opening Height of Entrance Gate Effect on Vertical Distribution Velocity in Turbidity Current" International Conference on Fluvial Hydraulics, River Flow2008, Turkey.

25. Firoozabadi, B., Khavasi,, Maleki, M., Afshin, H. "Turbulent Entrainment in Density Currents", Proceedings of IMECE08, 2008 ASME International Mechanical Engineering Congress and Exposition, October 31 - November 6, 2008, Boston, Massachusetts, USA.

26. Firoozabadi B., Nourmohammadi, Z., Hooshmand, A., Afshin, H., "Consideration of Effect of the Non-Dimensional Parameters in the Instability of the Particle-Laden Density Current", International Conference on Fluvial Hydraulics, River Flow2008, Turkey.

27. Firoozabadi B, Safaee, E., Nouri, A., Afshin, H. "Three-Dimensional Structures in Experimental Particle-Laden Density Currents" International Conference on Fluvial Hydraulics, River Flow2008, Turkey.

28. Firoozabadi, B., Afshin, H., Bagherpour, A., "Experimental Investigation of Turbulence Specifications of 3-D Density Currents", ASME/JSME 2007 5th Joint Fluids Engineering Conference July 30-August 2, San Diego, California, USA, FEDSM2007-37572 pp. 789-796 

29. Firoozabadi, B., Afshin, H., Sheikhi, J., "Experimental Investigation of Characteristic Variables in 3-D Density Current" IMECE2007, 2007 ASME International Mechanical Engineering Congress and Exposition, November 11-15, 2007, Seattle, Washington, USA.

30. Hormozi, S., Firoozabadi, B., Ghasvari Jahromi, H., and Afshin, H., " Comparison of 2-D Turbulent Particle Laden Density Current and Wall Jets", ASME 2006 2nd Joint U.S.-European Fluids Engineering Summer Meeting Collocated With the 14th International Conference on Nuclear Engineering (FEDSM2006) July 17-20, 2006, Miami, Florida, USA, FEDSM2006-98430 pp. 1763-1770

31. Hormozi, S., Firoozabadi, B., Ghasvari Jahromi, H., and Afshin, H.,"3-D Simulation of Turbulent Density", ASME 2006 2nd Joint U.S.-European Fluids Engineering Summer Meeting Collocated With the 14th International Conference on Nuclear Engineering (FEDSM2006),July 17-20, 2006, Miami, Florida, USA, FEDSM2006-98412 pp. 361-367

32. Firoozabadi, B., Afshin, H., Safaaee, E., "Three-Dimensional Structures in Experimental Density Currents", ASME/JSME 2007 5th Joint Fluids Engineering Conference July 30-August 2, 2007, San Diego, California, USA, FEDSM2007-37571 pp. 781-787

33. Saidi, M.H., Afshin, H., "Experimental and Numerical Simulation of a Three Way Catalyst" IMEC2004.

34. Emami, M.D., Ziaei-Rad, S, Afshin, H. "Application of the Multi-mixture fraction Model in Numerical Simulation of Turbulent Reacting Flows", Proceedings of the 11th Asian Congress of Fluid Mechanics 2007.

35. Afshin, H., Firoozabadi, B., Rad, M., "Hydrodynamics Analysis of Particle Laden Density Currents Using Two-Equation Turbulence k-w Model", The Seventh International Conference on HydroScience and Engineering (ICHE) hosted by the College of Engineering at Drexel Univeristy on September 10-13, 2006 in Philadelphia, Pennsylvania.

36. Afshin, H., Firoozabadi, B., "Numerical Simulation of Density Currents Using Two Phase Flow", ASME 2006 2nd Joint U.S.-European Fluids Engineering Summer Meeting Collocated With the 14th International Conference on Nuclear Engineering (FEDSM2006) July 17-20, 2006, Miami, Florida, USA., FEDSM2006-98174 pp. 49-54

37. Ghasvari Jahromi, H., Atefi, G., Moosaie, A., S. Hormozi, and Afshin, H., "Analytical Solution of Turbulent Couette Flow by Cosserat Continuum Model and Gradient Theory", ASME 2006 2^nd Joint U.S.-European Fluids Engineering Summer Meeting Collocated With the 14th International Conference on Nuclear Engineering (FEDSM2006) July 17-20, 2006, Miami, Florida, USA, FEDSM2006-98431 pp. 865-869.