Large eddy simulation of turbulent transfer in MHD duct flows with strong sidewall jets

H. Kobayashi, Y. Okuno

Research output: Contribution to journalConference article

Abstract

Large-eddy simulation (LES) of the turbulent duct flows in a liquid metal magnethydrodynamic (MHD) power generator is examined to reveal the turbulent transfer in the MHD flows with strong sidewall jets. The non-uniform magnetic flux density in the streamwise direction produces two eddy electric currents. The eddy current causes the wall-jet flows with M-shaped mean streamwise velocity profiles in the plane perpendicular to the external magnetic field. A laminar-turbulent transition occurs in the strong sidewall jets because the sidewall jets enhance with magnetic flux density. In the strong sidewall jets, the mean Reynolds shear stress profile reverses and the turbulent intensity profiles have two maxima like conventional wall jets without magnetic field.

Original languageEnglish
Pages (from-to)2222-2232
Number of pages11
JournalProceedings of the International Symposium on Turbulence, Heat and Mass Transfer
Volume2012-September
DOIs
Publication statusPublished - 2012 Jan 1
Event7th International Symposium On Turbulence, Heat and Mass Transfer, THMT 2012 - Palermo, Italy
Duration: 2012 Sep 242012 Sep 27

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes

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