Submitted:
05 March 2021
Posted:
05 March 2021
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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)
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