化工学报2016，Vol.67Issue(z2)：64-69,6.DOI:10.11949/j.issn.0438-1157.20161493
水平圆管内浆氢的流动与传热特性数值模拟
Numerical simulation on flow and heat transfer characteristics of slush hydrogen in horizontal pipe
摘要
Abstract
Slush hydrogen is a mixture of solid hydrogen and liquid hydrogen.It can be used as the fuel of rocket and space booster compared with the liquid hydrogen due to the higher density and heat capacity.In the present study,a numerical model was built based on the Eulerian-Eulerian model and kinetic theory of granular flow to investigate the flow and heat transfer characteristics of slush hydrogen in a horizontal pipe.For different heat fluxes,flow velocities and particle diameters of the slush hydrogen,it was found that the temperature of fluid can be decreased while using slush hydrogen instead of liquid hydrogen so that the vaporization of liquid hydrogen can be suppressed.The increase of flow velocity can make the distribution of particle more uniform and enhance the average heat transfer coefficient of slush hydrogen along the tube.Small diameter particle can improve the heat transfer between the solid phase and liquid phase and the melting of slush hydrogen can be accelerated.关键词
浆氢/流动与传热/体积分数分布/欧拉模型Key words
slush hydrogen/flow and heat transfer/volume fraction distribution/Eulerian-Eulerian model分类
化学化工引用本文复制引用
雷刚,马非,张鹏..水平圆管内浆氢的流动与传热特性数值模拟[J].化工学报,2016,67(z2):64-69,6.基金项目
国家自然科学基金项目(51376128) （51376128）
航天低温推进剂技术国家重点实验室开放基金项目(SKLTSCP1508)。@@@@supported by the National Natural Science Foundation of China (51376128)and the Fund of the State Key Laboratory of Technologies in Space Cryogenic Propellants (SKLTSCP1508) （SKLTSCP1508）
