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Title: Development of one-equation transition/turbulence models

Abstract

This paper reports on the development of a unified one-equation model for the prediction of transitional and turbulent flows. An eddy viscosity--transport equation for nonturbulent fluctuation growth based on that proposed by Warren and Hassan is combined with the Spalart-Allmaras one-equation model for turbulent fluctuation growth. Blending of the two equations is accomplished through a multidimensional intermittency function based on the work of Dhawan and Narasimha. The model predicts both the onset and extent of transition. Low-speed test cases include transitional flow over a flat plate, a single element airfoil, and a multi-element airfoil in landing configuration. High-speed test cases include transitional Mach 3.5 flow over a 5{degree} cone and Mach 6 flow over a flared-cone configuration. Results are compared with experimental data, and the grid-dependence of selected predictions is analyzed.

Authors:
; ; ;
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Sandia National Lab. (SNL-CA), Livermore, CA (United States)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
750241
Report Number(s):
SAND2000-0137C
TRN: AH200007%%102
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Conference
Resource Relation:
Conference: 38th AIAA Aerosciences Meeting, Reno, NM (US), 01/10/2000--01/13/2000; Other Information: PBD: 14 Jan 2000
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; FLOW MODELS; TRANSITION FLOW; TURBULENT FLOW; MACH NUMBER; AERODYNAMICS; AIRFOILS

Citation Formats

Edwards, J R, Roy, C J, Blottner, F G, and Hassan, H A. Development of one-equation transition/turbulence models. United States: N. p., 2000. Web.
Edwards, J R, Roy, C J, Blottner, F G, & Hassan, H A. Development of one-equation transition/turbulence models. United States.
Edwards, J R, Roy, C J, Blottner, F G, and Hassan, H A. 2000. "Development of one-equation transition/turbulence models". United States. https://www.osti.gov/servlets/purl/750241.
@article{osti_750241,
title = {Development of one-equation transition/turbulence models},
author = {Edwards, J R and Roy, C J and Blottner, F G and Hassan, H A},
abstractNote = {This paper reports on the development of a unified one-equation model for the prediction of transitional and turbulent flows. An eddy viscosity--transport equation for nonturbulent fluctuation growth based on that proposed by Warren and Hassan is combined with the Spalart-Allmaras one-equation model for turbulent fluctuation growth. Blending of the two equations is accomplished through a multidimensional intermittency function based on the work of Dhawan and Narasimha. The model predicts both the onset and extent of transition. Low-speed test cases include transitional flow over a flat plate, a single element airfoil, and a multi-element airfoil in landing configuration. High-speed test cases include transitional Mach 3.5 flow over a 5{degree} cone and Mach 6 flow over a flared-cone configuration. Results are compared with experimental data, and the grid-dependence of selected predictions is analyzed.},
doi = {},
url = {https://www.osti.gov/biblio/750241}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 14 00:00:00 EST 2000},
month = {Fri Jan 14 00:00:00 EST 2000}
}

Conference:
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