Application of a Reynolds stress turbulence model to a supersonic radiating hydrogen-air diffusion flameA second-order differential Reynolds Stress turbulence model has been applied to the Favre-averaged Navier-Stokes equations for the study of supersonic flows with finite-rate chemistry and radiation. An assumed Beta Probability Density Function is applied to account for the chemical source terms and the radiative flux terms in the conservation equations. A seven-species, seven-reaction finite rate chemistry mechanism is used to simulate the combustion process. The tangent slab approximation is used in radiative flux formulation. A pseudo-gray gas model is used to represent the absorption-emission characteristics of the participating species. The turbulence/radiation interaction is achieved via a new formulation. The resulting formulation is validated by comparison with experimental data on reacting supersonic axisymmetric jets. Results obtained for specific conditions indicate that the effect of chemical reaction on the turbulence is significant. Also, the radiative heat transfer is enhanced by the turbulence.
Document ID
19930039360
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Chandrasekhar, R. (NASA Langley Research Center Hampton, VA, United States)
Tiwari, S. N. (Old Dominion Univ. Norfolk, VA, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1993
Subject Category
Inorganic And Physical Chemistry
Report/Patent Number
AIAA PAPER 93-0447
Meeting Information
Meeting: AIAA, Aerospace Sciences Meeting and Exhibit