A new fractal interaction by exchange with the mean mixing model for large eddy simulation/filtered mass density function applied to a multiscalar three-stream turbulent jet

Dinesh A. Shetty; Abhilash J. Chandy; Steven H. Frankel

doi:10.1063/1.3319826

A new fractal interaction by exchange with the mean mixing model for large eddy simulation/filtered mass density function applied to a multiscalar three-stream turbulent jet

Dinesh A. Shetty, Abhilash J. Chandy, Steven H. Frankel

Research output: Contribution to journal › Article › peer-review

Abstract

A newly developed fractal interaction by exchange with the mean (FIEM) subgrid mixing model is comparatively assessed against several other popular mixing models in the context of the large eddy simulation (LES) and filtered mass density function approaches. A novel multiscalar three-stream turbulent jet mixing problem, consisting of acetone-doped air surrounded by a pure ethylene stream issuing into an air coflow, is used for the assessment. LES predictions using the FIEM, IEM, Euclidean minimum spanning tree, and parametrized scalar profile mixing models are compared with experimental measurements of scalar mean and rms profiles and demonstrate that FIEM is in better agreement with the data than the other models for this case.

Original language	English
Article number	025002PHF
Pages (from-to)	1-10
Number of pages	10
Journal	Physics of Fluids
Volume	22
Issue number	2
DOIs	https://doi.org/10.1063/1.3319826
State	Published - Feb 2010
Externally published	Yes

ASJC Scopus subject areas

Computational Mechanics
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Fluid Flow and Transfer Processes

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10.1063/1.3319826

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title = "A new fractal interaction by exchange with the mean mixing model for large eddy simulation/filtered mass density function applied to a multiscalar three-stream turbulent jet",

abstract = "A newly developed fractal interaction by exchange with the mean (FIEM) subgrid mixing model is comparatively assessed against several other popular mixing models in the context of the large eddy simulation (LES) and filtered mass density function approaches. A novel multiscalar three-stream turbulent jet mixing problem, consisting of acetone-doped air surrounded by a pure ethylene stream issuing into an air coflow, is used for the assessment. LES predictions using the FIEM, IEM, Euclidean minimum spanning tree, and parametrized scalar profile mixing models are compared with experimental measurements of scalar mean and rms profiles and demonstrate that FIEM is in better agreement with the data than the other models for this case.",

author = "Shetty, {Dinesh A.} and Chandy, {Abhilash J.} and Frankel, {Steven H.}",

note = "Funding Information: This work is partially supported by NSF Grant No. 0651788 and is gratefully acknowledged. Computing time was provided by the National Center for Supercomputing Applications (NCSA) and Purdue University Supercomputing. We would also like to thank Dr. Chenning Tong, associate professor at Clemson University, for providing the experimental data that have made the comparisons in this paper possible. ",

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doi = "10.1063/1.3319826",

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volume = "22",

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A new fractal interaction by exchange with the mean mixing model for large eddy simulation/filtered mass density function applied to a multiscalar three-stream turbulent jet. / Shetty, Dinesh A.; Chandy, Abhilash J.; Frankel, Steven H.
In: Physics of Fluids, Vol. 22, No. 2, 025002PHF, 02.2010, p. 1-10.

Research output: Contribution to journal › Article › peer-review

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AU - Shetty, Dinesh A.

AU - Chandy, Abhilash J.

AU - Frankel, Steven H.

N1 - Funding Information: This work is partially supported by NSF Grant No. 0651788 and is gratefully acknowledged. Computing time was provided by the National Center for Supercomputing Applications (NCSA) and Purdue University Supercomputing. We would also like to thank Dr. Chenning Tong, associate professor at Clemson University, for providing the experimental data that have made the comparisons in this paper possible.

PY - 2010/2

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AB - A newly developed fractal interaction by exchange with the mean (FIEM) subgrid mixing model is comparatively assessed against several other popular mixing models in the context of the large eddy simulation (LES) and filtered mass density function approaches. A novel multiscalar three-stream turbulent jet mixing problem, consisting of acetone-doped air surrounded by a pure ethylene stream issuing into an air coflow, is used for the assessment. LES predictions using the FIEM, IEM, Euclidean minimum spanning tree, and parametrized scalar profile mixing models are compared with experimental measurements of scalar mean and rms profiles and demonstrate that FIEM is in better agreement with the data than the other models for this case.

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A new fractal interaction by exchange with the mean mixing model for large eddy simulation/filtered mass density function applied to a multiscalar three-stream turbulent jet

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