Analysis of different approaches to modeling of nozzle flows in the near continuum regime

E. V. Titov; Rakesh Kumar; D. A. Levin; N. E. Gimelshein; S. F. Gimelshein

Analysis of different approaches to modeling of nozzle flows in the near continuum regime

E. V. Titov, Rakesh Kumar, D. A. Levin, N. E. Gimelshein, S. F. Gimelshein

Research output: Contribution to journal › Conference article › peer-review

Abstract

Conical nozzle flows are studied for Reynolds numbers of 1, 230 and 12, 300 using different numerical techniques: DSMC Method, Navier-Stokes/CFD accounting for velocity slip and temperature jump boundary conditions, and statistical and deterministic approaches to the solution of BGK equation. Detailed comparison of the stability, accuracy, and convergence of the employed numerical techniques provides better understanding of their benefits and deficiencies, and assists in selecting the most appropriate technique for a particular nozzle and flow application. The deterministic and statistical solutions of the BGK equation were found to be in good agreement with the benchmark DSMC results. The Navier-Stokes solution differs from DSMC in the boundary layer.

Original language	English (US)
Pages (from-to)	978-984
Number of pages	7
Journal	AIP Conference Proceedings
Volume	1084
State	Published - 2009
Externally published	Yes
Event	26th International Symposium on Rarefied Gas Dynamics, RGD26 - Kyoto, Japan Duration: Jul 20 2008 → Jul 25 2008

Keywords

DSMC method
High pressure case
Low pressure case
Statistical and finite volume BGK method

ASJC Scopus subject areas

Physics and Astronomy(all)

Library availability

Discover UIUC Full Text

Cite this

@article{37089e24f9884c5fb3700a5c5442c857,

title = "Analysis of different approaches to modeling of nozzle flows in the near continuum regime",

abstract = "Conical nozzle flows are studied for Reynolds numbers of 1, 230 and 12, 300 using different numerical techniques: DSMC Method, Navier-Stokes/CFD accounting for velocity slip and temperature jump boundary conditions, and statistical and deterministic approaches to the solution of BGK equation. Detailed comparison of the stability, accuracy, and convergence of the employed numerical techniques provides better understanding of their benefits and deficiencies, and assists in selecting the most appropriate technique for a particular nozzle and flow application. The deterministic and statistical solutions of the BGK equation were found to be in good agreement with the benchmark DSMC results. The Navier-Stokes solution differs from DSMC in the boundary layer.",

keywords = "DSMC method, High pressure case, Low pressure case, Statistical and finite volume BGK method",

author = "Titov, {E. V.} and Rakesh Kumar and Levin, {D. A.} and Gimelshein, {N. E.} and Gimelshein, {S. F.}",

year = "2009",

language = "English (US)",

volume = "1084",

pages = "978--984",

journal = "AIP Conference Proceedings",

issn = "0094-243X",

publisher = "American Institute of Physics Publising LLC",

note = "26th International Symposium on Rarefied Gas Dynamics, RGD26 ; Conference date: 20-07-2008 Through 25-07-2008",

}

TY - JOUR

T1 - Analysis of different approaches to modeling of nozzle flows in the near continuum regime

AU - Titov, E. V.

AU - Kumar, Rakesh

AU - Levin, D. A.

AU - Gimelshein, N. E.

AU - Gimelshein, S. F.

PY - 2009

Y1 - 2009

N2 - Conical nozzle flows are studied for Reynolds numbers of 1, 230 and 12, 300 using different numerical techniques: DSMC Method, Navier-Stokes/CFD accounting for velocity slip and temperature jump boundary conditions, and statistical and deterministic approaches to the solution of BGK equation. Detailed comparison of the stability, accuracy, and convergence of the employed numerical techniques provides better understanding of their benefits and deficiencies, and assists in selecting the most appropriate technique for a particular nozzle and flow application. The deterministic and statistical solutions of the BGK equation were found to be in good agreement with the benchmark DSMC results. The Navier-Stokes solution differs from DSMC in the boundary layer.

AB - Conical nozzle flows are studied for Reynolds numbers of 1, 230 and 12, 300 using different numerical techniques: DSMC Method, Navier-Stokes/CFD accounting for velocity slip and temperature jump boundary conditions, and statistical and deterministic approaches to the solution of BGK equation. Detailed comparison of the stability, accuracy, and convergence of the employed numerical techniques provides better understanding of their benefits and deficiencies, and assists in selecting the most appropriate technique for a particular nozzle and flow application. The deterministic and statistical solutions of the BGK equation were found to be in good agreement with the benchmark DSMC results. The Navier-Stokes solution differs from DSMC in the boundary layer.

KW - DSMC method

KW - High pressure case

KW - Low pressure case

KW - Statistical and finite volume BGK method

UR - http://www.scopus.com/inward/record.url?scp=63849137550&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=63849137550&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:63849137550

SN - 0094-243X

VL - 1084

SP - 978

EP - 984

JO - AIP Conference Proceedings

JF - AIP Conference Proceedings

T2 - 26th International Symposium on Rarefied Gas Dynamics, RGD26

Y2 - 20 July 2008 through 25 July 2008

ER -

Analysis of different approaches to modeling of nozzle flows in the near continuum regime

Abstract

Keywords

ASJC Scopus subject areas

Library availability

Related links

Fingerprint

Cite this