Second-Order Shock-Expansion Theory Extended to Include Real Gas Effects

New methods have been developed to compute inviscid surface pressures and temperatures for both perfect and equilibrium chemically reacting flows on both pointed and blunt bodies of revolution. These new methods include an improved Shock-expansion Theory, an improved Modified Newtonian Theory (MNT),...

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Bibliographic Details
Main Authors: Moore, Frank G, Armistead, Michael A, Rowles, Steve H, DeJarnette, Fred R
Format: Report
Language:English
Subjects:
Aerodynamics
AGREEMENTS
ANGLE OF ATTACK
ANGLES
ATTACK
BLUNT BODIES
BODIES
BODIES OF REVOLUTION
CHEMICALS
COMPARISON
COMPUTATIONS
ENGINEERING
ESTIMATES
EXPANSION
FLOW
Fluid Mechanics
GASES
HEAT
HEAT TRANSFER
INVISCID SURFACE TEMPERATURE
MODIFIED NEWTONIAN THEORY
MOMENTS
NUMBERS
PRESSURE
SHOCK
SHOCK EXPANSION THEORY
SHOCK WAVES
SURFACE TEMPERATURE
SURFACES
TEMPERATURE
Theoretical Mathematics
THEORY
TRANSFER
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Summary:New methods have been developed to compute inviscid surface pressures and temperatures for both perfect and equilibrium chemically reacting flows on both pointed and blunt bodies of revolution. These new methods include an improved Shock-expansion Theory, an improved Modified Newtonian Theory (MNT), and an improved method for angle-of-attack effects. Comparison of these approximate engineering techniques to exact inviscid computations using a full Euler code showed that these new methods gave very good agreement of surface temperature and pressures as well as forces and moments. Incorporation of this new technology into the NAVSWC aeroprediction code will allow the code to be used for engineering estimates of inviscid surface temperature at high Mach numbers. These approximate temperatures can then be used as inputs to perform heat transfer analysis. Second-order Shock-expansion, Perfect and Real Gases, Modified Newtonian Theory, Chemical Species Composition.