Working Paper Article Version 2 This version is not peer-reviewed

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)

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)

Comments (1)

Comment 1
Received: 11 March 2021
Commenter: Krishna Kumar
Commenter's Conflict of Interests: Author
Comment: Positions of figure 1  and figure 2 are corrected. Earlier figure 2 came before figure 1.
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