Comparison between two-fluid model predictions and large eddy simulation results in a vertical gas-solid turbulent channel flow

Olivier Simonin, Qunzhen Wang, Kyle Squires

Research output: Chapter in Book/Report/Conference proceedingConference contribution

10 Scopus citations

Abstract

This paper concerns the numerical prediction of gas-solid turbulent channel flows using a continuum approach for the dispersed phases. A model, based on separate transport equations for the components of the particle kinetic stress tensor, is briefly presented and the corresponding predictions are compared with large eddy simulation (LES) results. In the LES calculations, particle motion is governed only by drag and the volume fraction of the dispersed phase is assumed to be small enough such that particle-particle collisions and fluid turbulence modulation are negligible. It is shown that the particle kinetic stress transport model gives a satisfactory description for the mechanisms governing the particle velocity fluctuation in the flow: production of the streamwise particle velocity fluctuations by the mean velocity gradient, production of the wall-normal and spanwise velocity fluctuations by the fluid-particle velocity correlations and turbulent transport by the third order particle velocity correlations.

Original languageEnglish (US)
Title of host publicationAmerican Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED
Place of PublicationNew York, NY, United States
PublisherASME
Volume17
StatePublished - 1997
Externally publishedYes
EventProceedings of the 1997 ASME Fluids Engineering Division Summer Meeting, FEDSM'97. Part 24 (of 24) - Vancouver, Can
Duration: Jun 22 1997Jun 26 1997

Other

OtherProceedings of the 1997 ASME Fluids Engineering Division Summer Meeting, FEDSM'97. Part 24 (of 24)
CityVancouver, Can
Period6/22/976/26/97

ASJC Scopus subject areas

  • Engineering(all)

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    Simonin, O., Wang, Q., & Squires, K. (1997). Comparison between two-fluid model predictions and large eddy simulation results in a vertical gas-solid turbulent channel flow. In American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED (Vol. 17). ASME.