Title page for ETD etd-09082012-040110

Type of Document Master's Thesis
Author Garrett, Joseph Lee
URN etd-09082012-040110
Title A comparison of flux-splitting algorithms for the Euler equations with equilibrium air chemistry
Degree Master of Science
Department Aerospace Engineering
Advisory Committee
Advisor Name Title
Grossman, Bernard M. Committee Chair
Schetz, Joseph A. Committee Member
Walters, Robert W. Committee Member
  • Aerodynamics
  • Hypersonic
Date of Defense 1989-01-05
Availability restricted

The use of flux-splitting techniques on the Euler equations is considered for high Mach number, high temperature flows in which the fluid is assumed to be inviscid air in equilibrium. Three different versions of real gas extensions to the Steger—Warming and Van Leer flux-vector splitting, and four different versions of real gas extensions to the Roe flux-difference splitting, are compared with regard to general applicability and ease of implementation in existing perfect gas g algorithms. Test computations are performed for the M = 5, high temperature flow over a 10-degree wedge and the M = 24.5 flow over a blunt body. Although there were minor differences between the computed results for the three types of flux-splitting algorithms considered, little variation is observed between different versions of the same algorithm.

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