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Direct numerical simulation of the thermal effects in plasma/turbulence interaction
, Krishnan Mahesh
Published in American Institute of Aeronautics and Astronautics
Volume: 17
Pages: 12041 - 12055
The thermal effects of laser-induced plasma on isotropic turbulence are studied using direct numerical simulation. Laminar and turbulent simulations are conducted. For the laminar simulations, a tear-drop shaped blast wave propagates into the background becoming spherical in time. Shock radius and jumps in fluid properties at the shock front are compared to experiment. Both short and long time behavior of the plasma is studied. At short times, baroclinic vorticity is generated as a consequence of propagation of the curved shock through the domain. At long times, the flow field forms toroidal vortex rings, as observed in experiments. For the turbulent simulations, turbulence levels get enhanced in regions of compression across the blast wave and suppressed in regions of expansion in the plasma core.
About the journal
JournalData powered by TypesetCollection of Technical Papers - 45th AIAA Aerospace Sciences Meeting
PublisherData powered by TypesetAmerican Institute of Aeronautics and Astronautics
Impact Factor1.868
Open AccessNo
Citation Styleunsrt
Sherpa RoMEO Archiving PolicyGreen