Numerical simulations of conjugate convection combined with surface thermal radiation using an Immersed-Boundary Method

7th European Thermal-Sciences Conference

Favre, F.^1 ; Colomer, G.^1,2 ; Lehmkuhl, O.^1 ; Oliva, A.^1

Heat and Mass Transfer Technological Centre (CTTC), Universitat Politecnica de Catalunya (UPC), ESEIAAT, Colom Street 11, Terrassa (Barcelona)

E08222, Spain^1

Termo Fluids S.L., Avinguda Jaquard 97 1, Terrassa (Barcelona)

E08222, Spain^2

关键词: Conjugate convection;    Conjugate natural convection;    Immersed boundary methods;    Immersed boundary technique;    Navier-Stokes solver;    Net radiation method;    Radiative heat exchange;    Surface thermal radiation;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/745/3/032017/pdf
DOI  :  10.1088/1742-6596/745/3/032017

来源: IOP

【 摘 要 】

Dynamic and thermal interaction problems involving fluids and solids were studied through a finite volume-based Navier-Stokes solver, combined with immersed-boundary techniques and the net radiation method. Source terms were included in the momentum and energy equations to enforce the non-slip condition and the conjugate boundary condition including the radiative heat exchange. Code validation was performed through the simulation of two cases from the literature: conjugate natural convection in a square cavity with a conducting side wall; and a cubical cavity with conducting walls and a heat source. The accuracy of the methodology and the validation of the inclusion of moving bodies into the simulation was performed via a theoretical case.