A level-set method for thermal motion of bubbles and droplets

7th European Thermal-Sciences Conference

Balcázar, Néstor^1 ; Oliva, Assensi^1 ; Rigola, Joaquim^1

Heat and Mass Transfer Technological Centre (CTTC), Universitat Politécnica de Catalunya-BarcelonaTech (UPC), ESEIAAT, Carrer Colom 11, Terrassa (Barcelona)

08222, Spain^1

关键词: Direct simulation;    Energy conservation equations;    Level Set method;    Level-set model;    Multiple fluids;    Numerical results;    Thermocapillary;    Thermocapillary effect;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/745/3/032113/pdf
DOI  :  10.1088/1742-6596/745/3/032113

来源: IOP

【 摘 要 】

A conservative level-set model for direct simulation of two-phase flows with thermocapillary effects at dynamically deformable interface is presented. The Navier-Stokes equations coupled with the energy conservation equation are solved by means of a finite-volume/level-set method. Some numerical examples including thermocapillary motion of single and multiple fluid particles are computed by means of the present method. The results are compared with analytical solutions and numerical results from the literature as validations of the proposed model.