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Numerical study of chemically reacting flows using an LU schemeA new computational fluid dynamic code has been developed for the study of mixing and chemical reactions in the flow fields of ramjets and scramjets. The code employs an implicit finite volume, lower-upper symmetric successive overrelaxation scheme for solving the complete two-dimensional Navier-Stokes equations and species transport equations in a fully-coupled and very efficient manner. The combustion processes are modeled by an 8-species, 14-step finite rate chemistry model whereas turbulence is simulated by a Baldwin-Lomax algebraic model. The validity of the code is demonstrated by comparing the numerical calculations with both experimental data and previous calculations of a cold flow helium injection into a straight channel and premixed hydrogen-air reacting flows in a ramped duct. The code is then used to calculate the mixing and chemical reactions of a hydrogen jet transversely injected into a supersonic airstream. Results are presented describing the flow field, the recirculation regions in front and behind the injector, and the chemical reactions.
Document ID
19880004712
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Shuen, Jian Shun
(Sverdrup Technology, Inc. Cleveland, Ohio., United States)
Yoon, Seokkwan
(NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
September 5, 2013
Publication Date
January 1, 1988
Subject Category
Aircraft Propulsion And Power
Report/Patent Number
NAS 1.26:180882
NASA-CR-180882
AIAA PAPER 88-0436
E-3875
Accession Number
88N14094
Funding Number(s)
PROJECT: RTOP 505-31-04
CONTRACT_GRANT: NAS3-24105
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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