NUMERICAL SIMULATION OF BUBBLY TWO-PHASE FLOW USING EULERIAN-EULERIAN MODEL

CORZO SANTIAGO; MARQUEZ DAMIAN SANTIAGO; RAMAJO DAMIAN; NIGRO NORBERTO

Salta

Congreso; MECOM 2012; 2012

AMCA

<!-- @page { margin: 0.79in } P { margin-bottom: 0.08in } --> An accurate prediction of void generation and phase distribution on heat transfer undersub-cooled boiling regime is required in many industrial and laboratory applications. In this paper a one-dimensional code was implemented in order to study the mass and heat transfer amount phases duringhigh heat transfer in water-steam systems. To obtain a well-postulated model, in a first step it was imple-mented a one-dimensional Eulerian-Eulerian two-fluid model. Attention was focused on the interfacialmomentum exchange between phases caused by drag efforts. The two-fluid model implemented wasgenerated following the solvers and libraries implemented on CFD OpenFOAM R code due to its fullaccess, easy solver generation and modification. Finally, a mechanistic model from literature to predictsub-cooled boiling and bulk condensation is implemented and assessed with experimental data. Thispaper presents the constitutive relations implemented and highlighting the mechanistic model for massexchange prediction.