A k-omega multivariate beta PDF for supersonic turbulent combustionIn a recent attempt by the authors at predicting measurements in coaxial supersonic turbulent reacting mixing layers involving H2 and air, a number of discrepancies involving the concentrations and their variances were noted. The turbulence model employed was a one-equation model based on the turbulent kinetic energy. This required the specification of a length scale. In an attempt at detecting the cause of the discrepancy, a coupled k-omega joint probability density function (PDF) is employed in conjunction with a Navier-Stokes solver. The results show that improvements resulting from a k-omega model are quite modest.
Document ID
19930066012
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Alexopoulos, G. A. (NASA Langley Research Center Hampton, VA, United States)
Baurle, R. A. (NASA Langley Research Center Hampton, VA, United States)
Hassan, H. A. (North Carolina State Univ. Raleigh, United States)
Date Acquired
August 16, 2013
Publication Date
June 1, 1993
Subject Category
Fluid Mechanics And Heat Transfer
Report/Patent Number
AIAA PAPER 93-2197
Meeting Information
Meeting: AIAA, SAE, ASME, and ASEE, Joint Propulsion Conference and Exhibit