DEVELOPMENT OF A CONSERVATIVE NUMERICAL SOLVER FOR GAS-PARTICLES MULTI-FLUID SYSTEMS USING KINETIC THEORY OF GRANULAR FLOW

VENIER CESAR; MARQUEZ DAMIAN, SANTIAGO; RAMAJO DAMIAN; NIGRO NORBERTO

San Carlos de Bariloche

Congreso; ENIEF 2014; 2014

CNEA - Centro Atomico Bariloche

p { margin-bottom: 0in; direction: ltr; color: rgb(0, 0, 0); text-align: justify; widows: 2; orphans: 2; }p.western { font-family: "Times New Roman",serif; font-size: 11pt; font-weight: bold; }p.cjk { font-family: "Times New Roman",serif; font-size: 11pt; font-weight: bold; }p.ctl { font-family: "Times New Roman",serif; font-size: 10pt; }a:link { color: rgb(0, 0, 255); } Abstract. An Eulerian multiphase gas-solid solver with kinetic theory closure has been developed andimplemented on the open-source code OpenFOAM R . In order to increase the accuracy of the model,a fully conservative form of the momentum equations has been adopted, keeping the phase fraction inboth space and time derivatives. The enforcement of the packing limit has been addressed by an implicittreatment of the particle pressure contribution on the phase continuity equation, and a semi-implicittreatment of the drag term on the momentum equations has been used to construct the face fluxes neededby the algorithm. The solver has been tested against standard multiphase cases, where analytical ornumerical solutions are available for comparison.