### Hypersonic Aerodynamics (45817)

#### 2nd Semester 91-92

**Instructor:**M. Farahani

**OBJECTIVE:**Develop an understanding of inviscid hypersonic flows, viscous hypersonic flows and high temperature effects as they apply to hypersonic aerodynamics.

**Text Book:**Anderson, J. D., Hypersonic and High Temperature Gas Dynamics, McGraw Hill, 1989.

**Homework:**Assignments are made approximately weekly, due in one week for the text problems and two weeks for the instructor’s one. Late penalty is 5% per calendar day, No homework accepted after graded one is returned.

**Quizzes:**A 10 minute quiz will be given randomly.

**Grades:**

Homework and quizzes | 30% | |

Midterm | (00/00/00) | 25% |

Final | (92/03/25) | 40% |

Project | 10% | |

Total | 105% |

**Syllabus:**

1. Introduction and Basic Concepts

2. Basic governing equations: Basic conservation equations, continuity equation, hypersonic shock and expansion relations, hypersonic similarity parameters.

3. Surface pressure distribution in hypersonic flowfield: Newtonian, modified Newtonian, tangent wedge and cone and shock expansion techniques.

4. Approximate and exact methods in hypersonic inviscid flows: Mach number independence, small disturbance theory, thin shock layer theory. Blast wave theory, method of characteristics, correlation for hypersonic shock wave.

5. Boundary layer in Hypersonic Flow: Self-similar and Non-similar hypersonic boundary layers. hypersonic transition, hypersonic turbulent boundary layer, aerodynamic heating.

6. Viscous Interaction: Interaction parameter, weak and strong interactions, vorticity interaction, examples of viscous interaction.

7. Stagnation Point Field: Stagnation point properties, convective and radiative heat flux, shock standoff distance.

8. Aerodynamic forces and moments: Aerodynamics of typical hypersonic vehicles, dynamic stability, design considerations.

9. Introduction to viscous high temperature flow:, reentry aerodynamics, rarefied flows, etc.

10. Experimental methods for hypersonic flows: Impulse facilities, hypersonic wind tunnels, shock tunnels, gun tunnels, etc.

**References**

1. Maurice Rasmussen (1994), Hypersonic Flow, John Wiley.

2. John J Bertin (1994), Hypersonic Aerothermodynamics, AIAA Education Series., Washington DC

3. Wallace D. Hayes and Ronald F. Probstein (1959) Hypersonic Flow theory, Academic Press, New York

4. Wilbur L. Hankey (1988) Reentry Aerodynamics, AIAA Education series, Washington DC