Universidad Complutense de Madrid
E-Prints Complutense

Two-dimensional thermal convection flow with variable viscosity and embedded boundaries

Impacto

Downloads

Downloads per month over past year



Uhlmann, Markus and Pinelli, Alfredo (2003) Two-dimensional thermal convection flow with variable viscosity and embedded boundaries. .

[img]
Preview
PDF
194kB

Official URL: http://www.ciemat.es/sweb/comfos/personal/uhlmann/heat/report.pdf



Abstract

A two-dimensional model capable of simulating thermal convection flow in complex geometries has been implemented in a finite-difference setting and using a fictitious domain method of type “direct explicit forcing". The Boussinesq approximation is supposed to hold; the coupling between velocity and temperature fields is explicit; spatially varying viscosity is accounted for. The computation of a model for the thermally-induced flow in a three-chamber fuel tank reveals that the present method does not allow for sufficiently large time steps when the viscosity varies strongly.


Item Type:Article
Uncontrolled Keywords:Thermal convection, variable viscosity, fi�ctitious domain, direct forcing, �finite-diff�erences.
Subjects:Sciences > Physics
ID Code:22063
Deposited On:24 Jun 2013 12:00
Last Modified:12 Dec 2018 15:07

Origin of downloads

Repository Staff Only: item control page