Numerical simulation for subcooled boiling flow process of high pressure liquid
A numerical simulation has been performed for subcooled boiling process of high pressure liquid.On the basis of two-fluid model,the RPI model is used to calculate the mass transfer on the heating wall between gas-liquid two phases.The results show there is an obvious turning point on wall temperature along with flow direction,which demonstrates the onset point of subcooled boiling according to the variation of wall temperature.The fluid velocity isnt in linear increase,which increases gradually at first and then increases sharply,which is the similar with that of void fraction.The gas-phase velocity is higher than that of liquid-phase and the difference increases gradually along with flow direction.The variation of two-phase pressure difference is similar with that of single-phase flow,which is mainly the gravity pressure difference.The study results better meet with experimental data,which verifies the accuracy of computational model.
subcooled boiling two-fluid model void fraction numerical simulation
Zhou Aimin Jiang Yong Chen Jian Wang ShiZhong
Wuhan 2nd Ship Design and Research Institute, Wuhan 430064, China
国际会议
西安
英文
257-261
2012-08-24（万方平台首次上网日期，不代表论文的发表时间）