TY - JOUR
T1 - Direct numerical simulation of MHD turbulent free surface flow
AU - Satake, Shin Ichi
AU - Kunugi, Tomoak
AU - Smolentsev, Sergey
PY - 2002/3
Y1 - 2002/3
N2 - A direct numerical simulation (DNS) of turbulent free surface flow with a constant magnetic field has been carried out to grasp and understand the effects of electromagnetic suppression of turbulence. In this study, the Reynolds number based on bulk velocity and a film depth was set to be constant, Reb = 2 300. The constant static magnetic field at Ha = 20 and 30 for the streamwise orientation and at Ha = 5 and 10 for the spanwise orientation were considered in the electrical potential equation. The number of computational grids used in this study was 256 × 128 × 128 in the x-, y- and z- directions, respectively. The turbulent quantities such as the mean flow, turbulent stresses and the turbulent statistics were obtained. The mean velocity and turbulent intensities distributed from the wall to the free surface are damped quickly near wall region, because of the electromagnetic effects.
AB - A direct numerical simulation (DNS) of turbulent free surface flow with a constant magnetic field has been carried out to grasp and understand the effects of electromagnetic suppression of turbulence. In this study, the Reynolds number based on bulk velocity and a film depth was set to be constant, Reb = 2 300. The constant static magnetic field at Ha = 20 and 30 for the streamwise orientation and at Ha = 5 and 10 for the spanwise orientation were considered in the electrical potential equation. The number of computational grids used in this study was 256 × 128 × 128 in the x-, y- and z- directions, respectively. The turbulent quantities such as the mean flow, turbulent stresses and the turbulent statistics were obtained. The mean velocity and turbulent intensities distributed from the wall to the free surface are damped quickly near wall region, because of the electromagnetic effects.
KW - Direct numerical
KW - Free surface flow
KW - Magnetohydrodynamics
KW - Turbulent flow
UR - http://www.scopus.com/inward/record.url?scp=0036523609&partnerID=8YFLogxK
U2 - 10.1299/kikaib.68.755
DO - 10.1299/kikaib.68.755
M3 - Article
AN - SCOPUS:0036523609
SN - 0387-5016
VL - 68
SP - 755
EP - 760
JO - Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
JF - Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
IS - 667
ER -