A three-dimensional upwind PNS code for chemically reacting scramjet flowfields. [Parabolized Navier Stokes]
- Iowa State University of Science and Technology, Ames (United States) NASA, Ames Research Center, Moffett Field, CA (United States)
A new upwind, parabolized Navier-Stokes (PNS) code has been developed to compute the three-dimensional (3D) chemically reacting flow in scramjet (supersonic combustion ramjet) engines. The code is a modification of the 3D upwind PNS (UPS) airflow code which has been extended in the present study to permit internal flow calculations with hydrogen-air chemistry. With these additions, the new code has the capability of computing aerodynamic and propulsive flowfields simultaneously. The algorithm solves the PNS equations using a finite-volume, upwind TVD method based on Roe's approximate Riemann solver that has been modified to account for 'real gas' effects. The fluid medium is assumed to be a chemically reacting mixture of thermally perfect (but calorically imperfect) gases in thermal equilibrium. The new code has been applied to two test cases. These include the Burrows-Kurkov supersonic combustion experiment and a generic 3D scramjet flowfield. The computed results compare favorably with the available experimental data. 38 refs.
- Research Organization:
- National Aeronautics and Space Administration, Moffett Field, CA (United States). Ames Research Center
- OSTI ID:
- 7083868
- Report Number(s):
- AIAA-Paper--92-2898; CONF-9207154--
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
330100* -- Internal Combustion Engines
AERODYNAMICS
AIR
ALGORITHMS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COMBUSTION
COMBUSTION KINETICS
DIFFERENTIAL EQUATIONS
ELEMENTS
ENGINES
EQUATIONS
FLOW MODELS
FLUID FLOW
FLUID MECHANICS
FLUIDS
GASES
HEAT ENGINES
HYDROGEN
INTERNAL COMBUSTION ENGINES
KINETICS
MATHEMATICAL LOGIC
MATHEMATICAL MODELS
MECHANICS
NAVIER-STOKES EQUATIONS
NONMETALS
OXIDATION
PARTIAL DIFFERENTIAL EQUATIONS
RAMJET ENGINES
REACTION KINETICS
SUPERSONIC FLOW
THERMOCHEMICAL PROCESSES
THERMODYNAMICS
THREE-DIMENSIONAL CALCULATIONS