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Nov 23, 2024
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ME 882 - Compressible Flow3 lecture hours 0 lab hours 3 credits
Course Description
This course covers one-dimensional gas dynamics; shocks and waves, two-dimensional flows, perturbation theory; similarity rules, linearized velocity-potential equation. The course culminates in a computer project in which a supersonic nozzle will be designed using the method of characteristics. (prereq: ME 317 or equivalent)
Course Learning Outcomes
Upon successful completion of this course, the student will be able to:
- Apply engineering principles and analyze problems dealing with compressible flow and gas dynamics
- Compare shock expansion with linearized theory for subsonic and supersonic flow over airfoils
- Design a supersonic nozzle using the method of characteristics
Prerequisites by Topic
- Fluid mechanics
- Thermodynamics (covering II Law)
Course Topics
- Review of the fundamentals (laws of thermodynamics, conservation of mass, momentum and energy, entropy changes for perfect gases, stagnation properties)
- Introduction to compressible flow (sonic velocity, Mach number, stagnation relations in terms of Mach number, total pressure loss and entropy change relation, isentropic flow tables)
- Standing normal shocks
- Fanno flow and applications
- Rayleigh flow and applications
- Oblique shocks
- Prandtl-Meyer flow (including lift and drag calculations on airfoils at various angles of attack)
- Varying-area adiabatic flow (convergent-divergent nozzle, diffuser, choking)
- Supersonic nozzle experiment and Mach number calculations
- Topic: applications of compressible flow in propulsion systems (example: ramjet engine)
- Differential conservation equations
- Moving normal shock waves
- Velocity potential equation
- Linearized flow: subsonic and supersonic
- Conical flow
- Method of characteristics
- Finite difference techniques for steady supersonic flow
Laboratory Topics
- Supersonic nozzle experiment
Coordinator
Dr. Subha Kumpaty
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