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Frequency Power Spectra of Global Quantities in Magnetoconvection
Version 1
: Received: 5 March 2021 / Approved: 5 March 2021 / Online: 5 March 2021 (21:36:23 CET)
Version 2 : Received: 10 March 2021 / Approved: 11 March 2021 / Online: 11 March 2021 (11:32:29 CET)
Version 2 : Received: 10 March 2021 / Approved: 11 March 2021 / Online: 11 March 2021 (11:32:29 CET)
How to cite: Das, S.; Kumar, K. Frequency Power Spectra of Global Quantities in Magnetoconvection. Preprints 2021, 2021030200 Das, S.; Kumar, K. Frequency Power Spectra of Global Quantities in Magnetoconvection. Preprints 2021, 2021030200
Abstract
We present the results of direct numerical simulations of power spectral densities for kinetic energy, convective entropy and heat flux for unsteady Rayleigh-Bénard magnetoconvection in the frequency space. For larger values of frequency, the power spectral densities for all the global quantities vary with frequency f as f−2 . The scaling exponent is independent of Rayleigh number, Chandrasekhar’s number and thermal Prandtl number.
Keywords
Magnetoconvection; Turbulent flow; Power spectral densities (PSD)
Subject
Physical Sciences, Fluids and Plasmas Physics
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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