Computational Fluid Dynamic Simulations of Jet Momentum Transport in Liquid Metals
Several DOE laboratories are obtaining high resolution experimental data for validation and verification of computational fluid dynamics and multiphysics tools for the prediction of thermo-hydraulic phenomena in sodium fast reactor systems. The multiphysics code COMSOL is used to simulate two closely spaced jets entering a plenum in order to guide design of an experiment for acquisition of high resolution data for such a flow. COMSOL provides two default turbulence models, k-epsilon and k-omega. There exist within each of these turbulence models various options to tailor fit the model to the flow physics of interest. These turbulence models are first compared against existing literature simulations for a single vertical water jet injected into a pool of water to determine the ability of COMSOL to replicate well established data sets. This also provides the opportunity to tune the turbulence models to replicate the physics of the well-known single jet isothermal flow. Finally, simulations for two mixing jets are performed with mercury and with sodium, the fluids to be used in the experiments, and the outcomes are compared. These two mixing jet simulations are also compared with integral analytic mass and momentum balances to examine the simulation fidelity to these balances. The results of these computational efforts to support experiment design are presented.
COMSOL jet turbulence mercury sodium.
Lee Tschaepe O. Omotowa R. Davis A. Ruggles D. Pointer A. Tokuhiro
University of Tennessee, 315 Pasqua Engineering Building, Knoxville, Tennessee USA 37996 University of Idaho, 1776 Science Center Drive, Idaho Falls, Idaho USA 83402-1575 Argonne National Laboratory, Argonne, Illinois 60439 USA
国际会议
上海
英文
2432-2441
2010-10-10（万方平台首次上网日期，不代表论文的发表时间）