Feb 24, 2024  
2021-2022 Undergraduate Academic Catalog 
2021-2022 Undergraduate Academic Catalog [ARCHIVED CATALOG]

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ME 4802 - Compressible Flow

3 lecture hours 0 lab hours 3 credits
Course Description
This course covers the fundamental concepts and results for the compressible flow of gases. Topics to be covered include conservation laws, propagation of disturbances, isentropic flow, compressible flow in ducts with area changes, normal and oblique shock waves and applications, Prandtl-Meyer flow and applications, simple flows such as Fanno flow and Rayleigh flow with applications to nozzles, and propulsion related concepts. The emphasis will be on the physical understanding of the phenomena and basic analytical results. (prereq: ME 3102 , ME 3104 )
Course Learning Outcomes
Upon successful completion of this course, the student will be able to:
  • Demonstrate the ability to utilize the adiabatic and isentropic flow relations to solve typical flow problems
  • Demonstrate the ability to solve typical normal-shock problems, problems involving moving normal shocks or oblique shocks and Prandtl-Meyer flow problems by use of appropriate equations or tables or charts
  • Demonstrate the ability to solve typical Fanno flow problems and Rayleigh flow problems by use of appropriate equations and tables
  • Explain choking and shock in various applications and contexts

Prerequisites by Topic
  • Fluid mechanics (control volume mass, momentum and energy analysis)
  • Thermodynamics-II (covering Second Law of Thermodynamics)

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)
  • Varying-area adiabatic flow (convergent-divergent nozzle, diffuser, choking, isentropic flow tables)
  • Standing normal shocks
  • Moving and oblique (planar or conical) shocks
  • Prandtl-Meyer flow (including lift and drag calculations on airfoils at various angles of attack, and discussion on overexpanded and underexpanded nozzles)
  • Supersonic nozzle experiment and Mach number calculations
  • Fanno flow and applications
  • Rayleigh flow and applications
  • Topic: applications of compressible flow in propulsion systems (Example-ramjet engine)

Dr. Prabhakar Venkateswaran

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