Study of Two-Equation Based Modelling for Compressible, Turbulent Flows

James Keith Clutter; Venkata S. Krishnamurty; Wei Shyy

doi:10.2514/6.1996-518

Study of Two-Equation Based Modelling for Compressible, Turbulent Flows

James Keith Clutter, Venkata S. Krishnamurty, Wei Shyy

Research output: Contribution to conference › Conference Paper › peer-review

Abstract

Effects of compressibility and chemical reaction on the turbulence structure are two important but difficult issues in turbulence modelling. Several proposed treatments dealing with the dilatation dissipation and the pressure dilatation correlation are discussed in the context of the two-equation model. Also, two new modifications are proposed to account for extra terms that appearfor compressible flows. An attempt is made to validate and calibrate these modifications against experimental data for supersonic flow over an axi-symmetric afterbody. These compressibility modifications are also tested for certain simple reacting flows in order to estimate their predictive capabilities. Additionally, proposed modifications to account for the imbalance between the production of turbulent kinetic energy and its rate of dissipation are contrasted against the standard modelling procedure. © 1996 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved.

Original language	English
DOIs	https://doi.org/10.2514/6.1996-518
Publication status	Published - 1996
Externally published	Yes
Event	34th Aerospace Sciences Meeting and Exhibit - Duration: 1 Jan 1996 → 1 Jan 1996

Conference

Conference	34th Aerospace Sciences Meeting and Exhibit
Period	1/01/96 → 1/01/96

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10.2514/6.1996-518

Cite this

@conference{884267ef2a02466b941fb7f03c65aaca,

title = "Study of Two-Equation Based Modelling for Compressible, Turbulent Flows",

abstract = "Effects of compressibility and chemical reaction on the turbulence structure are two important but difficult issues in turbulence modelling. Several proposed treatments dealing with the dilatation dissipation and the pressure dilatation correlation are discussed in the context of the two-equation model. Also, two new modifications are proposed to account for extra terms that appearfor compressible flows. An attempt is made to validate and calibrate these modifications against experimental data for supersonic flow over an axi-symmetric afterbody. These compressibility modifications are also tested for certain simple reacting flows in order to estimate their predictive capabilities. Additionally, proposed modifications to account for the imbalance between the production of turbulent kinetic energy and its rate of dissipation are contrasted against the standard modelling procedure. {\textcopyright} 1996 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved.",

author = "Clutter, \{James Keith\} and Krishnamurty, \{Venkata S.\} and Wei Shyy",

year = "1996",

doi = "10.2514/6.1996-518",

language = "English",

note = "34th Aerospace Sciences Meeting and Exhibit ; Conference date: 01-01-1996 Through 01-01-1996",

}

TY - CONF

T1 - Study of Two-Equation Based Modelling for Compressible, Turbulent Flows

AU - Clutter, James Keith

AU - Krishnamurty, Venkata S.

AU - Shyy, Wei

PY - 1996

Y1 - 1996

N2 - Effects of compressibility and chemical reaction on the turbulence structure are two important but difficult issues in turbulence modelling. Several proposed treatments dealing with the dilatation dissipation and the pressure dilatation correlation are discussed in the context of the two-equation model. Also, two new modifications are proposed to account for extra terms that appearfor compressible flows. An attempt is made to validate and calibrate these modifications against experimental data for supersonic flow over an axi-symmetric afterbody. These compressibility modifications are also tested for certain simple reacting flows in order to estimate their predictive capabilities. Additionally, proposed modifications to account for the imbalance between the production of turbulent kinetic energy and its rate of dissipation are contrasted against the standard modelling procedure. © 1996 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved.

AB - Effects of compressibility and chemical reaction on the turbulence structure are two important but difficult issues in turbulence modelling. Several proposed treatments dealing with the dilatation dissipation and the pressure dilatation correlation are discussed in the context of the two-equation model. Also, two new modifications are proposed to account for extra terms that appearfor compressible flows. An attempt is made to validate and calibrate these modifications against experimental data for supersonic flow over an axi-symmetric afterbody. These compressibility modifications are also tested for certain simple reacting flows in order to estimate their predictive capabilities. Additionally, proposed modifications to account for the imbalance between the production of turbulent kinetic energy and its rate of dissipation are contrasted against the standard modelling procedure. © 1996 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved.

UR - https://www.scopus.com/pages/publications/85088750891

UR - https://openalex.org/W2023152484

U2 - 10.2514/6.1996-518

DO - 10.2514/6.1996-518

M3 - Conference Paper

T2 - 34th Aerospace Sciences Meeting and Exhibit

Y2 - 1 January 1996 through 1 January 1996

ER -

Study of Two-Equation Based Modelling for Compressible, Turbulent Flows

Abstract

Conference

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