期刊
INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW
卷 62, 期 -, 页码 324-343出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.ijheatfluidflow.2016.09.015
关键词
Thermocapillary; Variable surface tension; Interfacial heat transfer; Fluid particles; Conservative level-set method
资金
- Ministerio de Economia y Competitividad, Secretaria de Estado de Investigacion, Desarrollo e Innovacion, Spain [ENE2015-70672-P]
- Programa Torres Quevedo, Ministerio de Economia y Competitividad, Secretaria de Estado de Investigacion, Desarrollo e Innovacion, Spain [PTQ-14-07186]
- PRACE 10th Call on the supercomputer MareNostrum III based in Barcelona, Spain [2014112666]
A new level-set model is proposed for simulating immiscible thermocapillary flows with variable fluid property ratios at dynamically deformable interfaces. The Navier-Stokes equations coupled with the energy conservation equation are solved by means of a finite-volume/level-set approach, adapted to a multiple marker methodology in order to avoid the numerical coalescence of the fluid particles. The temperature field is coupled to the surface tension through an equation of state. Some numerical examples including thermocapillary driven convection in two superimposed fluid layers, and thermocapillary motion of single and multiple fluid particles are computed using the present method. These results are compared against analytical solutions and numerical results from the literature as validations of the proposed model. (C) 2016 Elsevier Inc. All rights reserved.
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