Elie Hachem - MINES ParisTech - CEMEF - Keywords: Bi-fluid Navier-Stokes, boiling, turbulence, multiphase flows

Elie Hachem - MINES ParisTech - CEMEF - Keywords: Bi-fluid Navier-Stokes, boiling, turbulence, multiphase flows

Contribution title: A new numerical framework for phase change, boiling and liquid-vapor interface

We propose in this work a novel numerical framework, for simulating the cooling of immersed 3D solids with boiling and evaporation at the liquid-gas interfaces. Indeed, while standard numerical methods may not able to deal with these heat transfer interactions simultaneously: gas-liquid-solid phase changes, vapor formations and dynamics, and 3D quenching of a heated solid, therefore, we propose in this work a new adaptive Eulerian framework to achieve this challenging task.

It combines a Level Set method to separate and to track each phases and a Variational Multiscale solver for the Navier-Stokes equations to deal with turbulent multiphase flows and surface tension. A series of problems are solved to verify the efficiency of the proposed framework including comparisons with experimental results. To our knowledge, the direct simulations of quenching using an Eulerian framework with boiling and evaporation have never been considered.