Work

Transitions near the onset of stationary rotating magnetoconvection: Role of magnetic Prandtl number

Year: 2025

Type: article

Abstract: We investigate the instabilities and associated bifurcation structure near the onset of rotating magnetoconvection of low Prandtl number fluids by performing three-dimensional direct numerical simulations. Previous studies considered zero magnetic Prandtl number (Pm) limit for the investigation of bifurcation structure near the onset of convection. Here, we numerically investigate the effect of Pm on the bifurcation structure. The classical Rayleigh–Bénard convection setup in the presence of a horizontal magnetic field and rotation about the vertical axis is considered for the study. The control parameters, including the Taylor number (Ta), the Chandrasekhar number (Q), the reduced Rayleigh number (r), and the magnetic Prandtl number (Pm), are varied in the ranges 1≤Ta≤500, 0

Source: Physics of Fluids

DOI: 10.1063/5.0244714

Authors: Snehashish Sarkar, Sutapa Mandal, Pinaki Pal

Institutions: National Institute of Technology Durgapur, Arizona State University

Language: English

Topic: Fluid Dynamics and Turbulent Flows

Subfield: Computational Mechanics

Field: Engineering

Domain: Physical Sciences

Open Access status: green

Funders: Council of Scientific and Industrial Research, India, University Grants Commission

Awards: G3254294539, G3347865606