Bulletin of the American Physical Society
64th Annual Meeting of the APS Division of Plasma Physics
Volume 67, Number 15
Monday–Friday, October 17–21, 2022; Spokane, Washington
Session GP11: Poster Session III: In-Person, Hall A (9:30-11:00am) and Virtual Poster Presentations (11:15am-12:30pm)
MFE: DIII-D
Low Temperature Plasma
FUND: Dusty Plasmas; Plasma Sources
9:30 AM - 12:30 PM
Tuesday, October 18, 2022
Room: Exhibit Hall A and Online
Abstract: GP11.00103 : Experimental investigation of flow induced vortices in a dusty plasma*
Presenter:
Krishan Kumar
(Institute for Plasma Research, Bhat)
Authors:
Krishan Kumar
(Institute for Plasma Research, Bhat)
Pintu Bandyopadhyay
(Institute for Plasma Research)
Swarnima Singh
(Intitute for Plasma Research)
Abhijit Sen
(Inst for Plasm Res)
pressure. The shear generated at the interface of the moving and the stationary layers leads to the formation of vortices when the inlet gas pressure crosses a threshold value. It is observed that the vortex size becomes smaller with an increase in the gas pressure of the pulsed valve. The shear velocity increases even further when the stationary layer is
made to flow in an opposite direction. It is noticed that vortices with smaller diameters become more prominent in such a case. The magnitude of vorticity is found to be maximum when both the dust layers move in opposite directions.
*A.S. acknowledges the support of a INSA Senior Fellowship for his research.
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