Conjugate heat transfer in the mode of thermal gravitational-capillary convection in the model of a fuel tank, after a sudden heating of the sidewall

Abstract The evolution of unsteady gravitational-capillary convection in a layer ethyl alcohol with free surface after sudden electric heating one the vertical walls rectangular cavity was investigated numerically. effect incoming flow hot liquid on time temperature field opposite thin metal wall investigated. calculations were carried out by finite element method conjugate two-dimensional formulation Prandtl number Pr = 16, and range Grashof numbers determined heat flux density, 33·10 3 ≤ Gr 28·10 6 . It is shown that maximum local gradients occur near liquid-gas interface.