基于两流体模型的流动沸腾瞬态数值模拟程序

基于两流体模型与固壁非稳态导热模型,结合相关关联式组合,建立了流道内流动沸腾传热的瞬态数值模拟程序。通过不同入口瞬态下流道两相流动沸腾过程的算例计算分析,确认了程序进行流动沸腾瞬态模拟的能力。通过对不同固壁加热条件下流动沸腾行为的算例计算,检验了该程序进行流壁耦合行为模拟的功能。程序可进一步向系统分析程序和子通道程序发展。

Transient Simulation Code for Flow Boiling Based on Two-Fluid Model

Based on the coupling of two-fluid and wall dynamics models,and selection of specific corre-lation combination,a transient simulation code on flow boiling and heat transfer analysis within heated chan-nel is developed.Through benchmark simulation on different flow boiling cases with various inlet parameters transients,capabilities of the code transient simulating flow boiling behaviors is validated.Furthermore,the fluid-wall heat coupling simulation function of the code are tested through case studies on boiling heat trans-fer under different wall heating conditions.Starting from the present basis,the program is expected to be fur-ther developed forwarding to both system analysis and sub-channel analysis codes,which might demonstrate its feature of expansion and prospect of practical applications.