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Direct numerical simulation of the thermal effects of plasmas on turbulent flows
, Krishnan Mahesh
Published in
2005
Pages: 6955 - 6966
Abstract
The thermal effects of plasmas on Isotropic turbulence are studied using direct numerical simulations. The temperature ratio of the plasma region to the background region is moderate. Two idealizations of the plasma are considered - spherical and conical. The conical idealization is found preferable in that it approximates the tear-drop shape of the plasma region that is observed experimentally, and produces baroclinic vorticity. The variation of the magnitude of the vorticity with temperature ratio and size of plasma region is examined. A blast wave followed by a region of expansion propagates normal to the axis of the plasma region. The turbulence is observed to be suppressed in the core of the plasma, presumably due to bulk expansion.
About the journal
Journal43rd AIAA Aerospace Sciences Meeting and Exhibit - Meeting Papers
Open AccessNo