6 Dokumente gefunden
Wall-attached convection under strong inclined magnetic fields
We employ a linear stability analysis and direct numerical simulations to study the characteristics of wall modes in thermal convection in a rectangular box under strong and inclined magnetic fields. The walls of the convection cell are electrically insulated. The stability analysis assumes periodicity…
Cambridge [u.a.]: Cambridge Univ. Press, 2024-01-25
Simulation of magnetohydrodynamic flows of liquid metals with heat transfer or magnetic stirring
We discuss the effects of nonhomogeneous magnetic fields in liquid metal flows in two different configurations. In the first configuration, we briefly report the impact of fringing magnetic fields in a turbulent Rayleigh-Bénard convection setup, where it was shown that the global heat transport decreases…
Weinheim [u.a.]: Wiley-VCH, 2023-09-17
Effects of strong fringing magnetic fields on turbulent thermal convection
We study the influence of fringing magnetic fields on turbulent thermal convection in a horizontally extended rectangular domain. The magnetic field is created in the gap between two semi-infinite planar magnetic poles, with the convection layer located near the edge of the gap. We employ direct numerical…
Cambridge [u.a.]: Cambridge Univ. Press, 2023-06-01
Convective mesoscale turbulence at very low Prandtl numbers
Horizontally extended turbulent convection, termed mesoscale convection in natural systems, remains a challenge to investigate in both experiments and simulations. This is particularly so for very low molecular Prandtl numbers, such as occur in stellar convection and in the Earth's outer core. The present…
Cambridge [u.a.]: Cambridge Univ. Press, 2022-09-08
Liquid metal flat jet transformation under influence of transverse magnetic field
The article is devoted to an experimental study of a submerged flat jet flow in a transverse magnetic field. Two different approaches to the experimental study of jet flows are described. Detailed information about the experimental program and measuring methods presented here. The flow of a flat jet…
[Bristol]: IOP Publishing, 2020-12-11
Dissipation-scale fluctuations in the inner region of turbulent channel flow
The statistics of intense energy dissipation events in wall-bounded shear flows are studied using highly resolved direct numerical simulations of turbulent channel flow at three different friction Reynolds numbers. Distributions of the energy dissipation rate and local dissipation scales are computed…
Bristol: IOP Publishing, 2011-12-22