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Dhaka A, Subhash PV, Bandyopadhyay P, Sen A. Auto-correlations of microscopic density fluctuations for Yukawa fluids in the generalized hydrodynamics framework with viscoelastic effects. Sci Rep 2022; 12:21883. [PMID: 36536026 PMCID: PMC9763351 DOI: 10.1038/s41598-022-26401-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022] Open
Abstract
The present work develops a theoretical procedure for obtaining transport coefficients of Yukawa systems from density fluctuations. The dynamics of Yukawa systems are described in the framework of the generalized hydrodynamic (GH) model that incorporates strong coupling and visco-elastic memory effects by using an exponentially decaying memory function in time. A hydrodynamic matrix for such a system is exactly derived and then used to obtain an analytic expression for the density autocorrelation function (DAF)-a marker of the time dynamics of density fluctuations. The present approach is validated against a DAF obtained from numerical data of Molecular Dynamics (MD) simulations of a dusty plasma system that is a practical example of a Yukawa system. The MD results and analytic expressions derived from the model equations are then used to obtain various transport coefficients and the latter are compared with values available in the literature from other models. The influence of strong coupling and visco-elastic effects on the transport parameters are discussed. Finally, the utility of our calculations for obtaining reliable estimates of transport coefficients from experimentally determined DAF is pointed out.
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Affiliation(s)
- Ankit Dhaka
- grid.502813.d0000 0004 1796 2986Institute for Plasma Research, Bhat, Gandhinagar, Gujarat 382428 India ,grid.450257.10000 0004 1775 9822Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai, 400094 India
| | - P. V. Subhash
- grid.450257.10000 0004 1775 9822Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai, 400094 India ,grid.502813.d0000 0004 1796 2986ITER-India, Institute for Plasma Research, Bhat, Gandhinagar, Gujarat 382428 India
| | - P. Bandyopadhyay
- grid.502813.d0000 0004 1796 2986Institute for Plasma Research, Bhat, Gandhinagar, Gujarat 382428 India ,grid.450257.10000 0004 1775 9822Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai, 400094 India
| | - A. Sen
- grid.502813.d0000 0004 1796 2986Institute for Plasma Research, Bhat, Gandhinagar, Gujarat 382428 India ,grid.450257.10000 0004 1775 9822Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai, 400094 India
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Mehta M, Singh NL, Singh RK, Parashari S, Subhash PV, Naik H, Chauhan RD, Makwana R, Suryanarayana SV, Mukherjee S, Gandhi A, Varmuza J, Katovsky K. Measurement of 90Zr(n,2n)89Zr and 90Zr(n,p)90mY reaction cross-sections in the neutron energy range of 10.95 to 20.02 MeV. J Radioanal Nucl Chem 2021. [DOI: 10.1007/s10967-021-07625-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Pandey J, Pandey B, Agrawal HM, Subhash PV, Vala S, Aiyyala AS, Makwana R, Suryanarayana SV. Estimation of ( n, p) and ( n, α) Cross Section of Radionuclide 60Co for Fusion Technology Applications. Fusion Science and Technology 2018. [DOI: 10.1080/15361055.2017.1397485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Jyoti Pandey
- G.B. Pant University of Agriculture and Technology, Department of Physics, Pantnagar, Uttarakhand 263145, India
| | - Bhawna Pandey
- G.B. Pant University of Agriculture and Technology, Department of Physics, Pantnagar, Uttarakhand 263145, India
| | - H. M. Agrawal
- G.B. Pant University of Agriculture and Technology, Department of Physics, Pantnagar, Uttarakhand 263145, India
| | - P. V. Subhash
- Institute for Plasma Research, HBNI, ITER-India, Gandhinagar, Gujarat 382428, India
| | - S. Vala
- Institute for Plasma Research, Fusion Neutronics Laboratory, Gandhinagar, Gujarat 382428, India
| | - Akhil Sai Aiyyala
- G.B. Pant University of Agriculture and Technology, Department of Physics, Pantnagar, Uttarakhand 263145, India
| | - Rajnikant Makwana
- M.S. University of Baroda, Physics Department, Faculty of Science, Vadodara, Gujarat 390002, India
| | - S. V. Suryanarayana
- Bhabha Atomic Research Centre, Nuclear Physics Division, Mumbai, Maharashtra 400085, India
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Tadepalli SC, Kanth P, Subhash PV. Parent Isotopic and Elemental Contributing Factors to Minimize Nuclear Radiological Responses and Optimize Material Composition. NUCL SCI ENG 2017. [DOI: 10.1080/00295639.2017.1367570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
| | - Priti Kanth
- Institute for Plasma Research, HBNI, Bhat, Gandhinagar, Gujarat, India
| | - P. V. Subhash
- ITER-India, Institute for Plasma Research, Gandhinagar, Gujarat, India
- Homi Bhabha National Institute, AnushaktiNagar, Mumbai 400094, India
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Subhash PV, Singh AK, Pandya H, Divya VS, Aparna MP, Thanseem TKB. A Parametric Model for Contribution of Superthermal Electrons to Oblique Measurement Electron Cyclotron Spectra Under ITER-Like Conditions. Fusion Science and Technology 2017. [DOI: 10.1080/15361055.2016.1273692] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- P. V. Subhash
- ITER-India, Institute for Plasma Research, Gandhinagar, Gujarat, India
| | - Amit Kumar Singh
- ITER-India, Institute for Plasma Research, Gandhinagar, Gujarat, India
| | - Hitesh Pandya
- ITER-India, Institute for Plasma Research, Gandhinagar, Gujarat, India
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Subhash PV, Indauliya G, Chaitanya TS, Kanth P, Jakhar S, Varshney S, Kumar S, Krishna R, Bhaliya N, Mishra S, Shrishail P, Kumar V. Activation and Radioactive Waste Analysis for Survey X-Ray Crystal Spectrometer of ITER. Fusion Science and Technology 2017. [DOI: 10.13182/fst16-241] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- P. V. Subhash
- ITER-India, Institute for Plasma Research, Gandhinagar, Gujarat, India
| | - Gunjan Indauliya
- Bhakti Management Services Pvt. Ltd., Gandhinagar, Gujarat, India
| | - T. Sai Chaitanya
- ITER-India, Institute for Plasma Research, Gandhinagar, Gujarat, India
| | - Priti Kanth
- ITER-India, Institute for Plasma Research, Gandhinagar, Gujarat, India
| | - S. Jakhar
- Institute for Plasma Research, Gandhinagar, Gujarat, India
| | - Sanjeev Varshney
- ITER-India, Institute for Plasma Research, Gandhinagar, Gujarat, India
| | - Siddharth Kumar
- ITER-India, Institute for Plasma Research, Gandhinagar, Gujarat, India
| | - Raja Krishna
- University of Petroleum and Energy Studies (UPES), Dehradun, India
| | - Nirav Bhaliya
- Bhakti Management Services Pvt. Ltd., Gandhinagar, Gujarat, India
| | - Sapna Mishra
- ITER-India, Institute for Plasma Research, Gandhinagar, Gujarat, India
| | - P. Shrishail
- ITER-India, Institute for Plasma Research, Gandhinagar, Gujarat, India
| | - Vinay Kumar
- ITER-India, Institute for Plasma Research, Gandhinagar, Gujarat, India
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Subhash PV, Ghai Y, Amit SK, Begum AM, Vasu P. Radial Resolution Evaluation for Oblique-View Electron Cyclotron Emission for ITER. Fusion Science and Technology 2015. [DOI: 10.13182/fst14-823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- P. V. Subhash
- ITER-India, Institute for Plasma Research, Gandhinagar, Gujarat, India
| | - Y. Ghai
- GNDU, Amritsar, Punjab, India
| | - S. K. Amit
- ITER-India, Institute for Plasma Research, Gandhinagar, Gujarat, India
| | - A. M. Begum
- Kanchi Mamunivar Center for Post Graduate Studies, Poducherry, India
| | - P. Vasu
- ITER-India, Institute for Plasma Research, Gandhinagar, Gujarat, India
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Subhash PV, Pandya HKB, Kumar R, Vasu P. Effects of Non-thermal Electrons from ECCD on ECE Temperature Measurements for ITER. EPJ Web of Conferences 2012. [DOI: 10.1051/epjconf/20123203014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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