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 BO07: Dusty Plasmas and Multiphase Media
9:30 AM–12:30 PM,
Monday, October 17, 2022
Room: 401 ABC
Chair: Saikat Chakraborty Thakur, Auburn University
Abstract: BO07.00011 : Bispectral analysis of nonlinear mixing in dusty plasma*
11:30 AM–11:42 AM
Presenter:
Ajaz A Mir
(Indian Institute of Technology Jammu)
Authors:
Ajaz A Mir
(Indian Institute of Technology Jammu)
Sanat K Tiwari
(Indian Institute of Technology Jammu)
Abhijit Sen
(Institute for Plasma Research)
In this work, we confirm using bispectral analysis that the modes that originated in the fKdV model are due to the three-wave mixing of a natural dust acoustic wave (DAW) mode and another forcing mode. Our results are in agreement with the dusty plasma experiment [4]. Furthermore, a kinetic model is also developed to study NLM in dusty plasma in which particles interact via Yukawa potential. We found that the results based on the classical molecular dynamics simulations agree with the fKdV model, where nonlinear and travelling form of force is used. Both the models can be extended to a nonlinear dispersive fluid-like medium.
References:
1. Liu, B. and Goree, J. and Flanagan, T. M. and Sen, A. and Tiwari, S. and Ganguli, G. and Crabtree, C.: Experimental observation of cnoidal waveform of nonlinear dust acoustic waves
2. Mir, A. A. and Tiwari, K. S. and Goree, J. and Sen, A. and Crabtree, C. and Ganguli, G.: A forced Korteweg-de Vries model for nonlinear mixing of oscillations in a dusty plasma
3. Mir, A. and Tiwari, S. and Sen, A.: Bispectral analysis of nonlinear mixing in a periodically driven Korteweg-de Vries system
4. Nosenko, V. and Avinash, K. and Goree, J. and Liu, B.: Nonlinear Interaction of Compressional Waves in a 2D Dusty Plasma Crystal
*S.K.T. also acknowledges Science and Engineering Research Board (SERB) Grant No. CRG/2020/003653 for partial support for the work.A.S. is thankful to the Indian National Science Academy (INSA) for their support under the INSA Senior Scientist Fellowship scheme.
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