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Development of an algebraic turbulence model for analysis of propulsion flowsA simple turbulence model that will be applicable to propulsion flows having both wall bounded and unbounded regions was developed and installed within the PARC Navier-Stokes code by linking two existing algebraic turbulence models. The first is the Modified Mixing Length (MML) model which is optimized for wall bounded flows. The second is the Thomas model, the standard algebraic turbulence model in PARC which has been used to calculate both bounded and unbounded turbulent flows but was optimized for the latter. This paper discusses both models and the method employed to link them into one model (referred to as the MMLT model). The PARC code with the MMLT model was applied to two dimensional turbulent flows over a flat plate and over a backward facing step to validate and optimize the model and to compare its predictions to those obtained with the three turbulence models already available in PARC.
Document ID
19920018274
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Georgiadis, N. J. (Akron Univ. OH., United States)
Drummond, J. E. (NASA Lewis Research Center Cleveland, OH, United States)
Leonard, B. P. (Akron Univ. OH., United States)
Date Acquired
September 6, 2013
Publication Date
July 1, 1992
Subject Category
Numerical Analysis
Report/Patent Number
NASA-TM-105701
AIAA PAPER 92-3861
NAS 1.15:105701
E-7089
Meeting Information
Meeting: Joint Propulsion Conference and Exhibit
Location: Nashville, TN
Country: United States
Start Date: July 6, 1992
End Date: July 8, 1992
Sponsors: AIAA, ASME, SAE, ASEE
Accession Number
92N27517
Funding Number(s)
PROJECT: RTOP 537-02-23
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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