用双流体模型模拟超声速气固两相流动
Simulation of supersonic gas-particle two-phase flow with two-fluid model

于勇 ¹ 张夏 ² 陈维 ¹

文摘	采用了双流体模型对JPL(Jet Propulsion Laboratory)喷管中气固两相流动以及超声速射流两相流动进行了数值模拟,并研究了可压缩两相流动中气相与颗粒的相互作用规律.自主开发的一般曲线坐标系下二维轴对称可压缩双流体程序Solve2D,对气相求解Navier-Stokes(N-S)方程组,采用k-ε湍流模型,颗粒相求解Euler方程组.对JPL喷管内的两相流场和湍流两相射流流场进行了数值模拟,研究了不同颗粒质量百分数以及不同颗粒直径时的气固两相流场的流动规律.
其他语种文摘	A two-fluid model was applied to simulate compressible two-phase flow in JPL(Jet Propulsion Laboratory) nozzle and supersonic jet two-phase flow. And, the interac-tional mechanism of gas phase and particle phase, rules of particles flowing at different sizes were studied. Program "Solve2D" solving two-dimensional axisymmetric compressible two-fluid model with body-fitted coordinate system was developed. The program was used to solve gas phase Navier-Stokes (N-S) equations with k-ε turbulence model. For particle phase, Euler equations were solved. Two phases were coupled through source terms. Gas-particle two-phase flow field of JPL nozzle and jet were studied under different particle mass percentages and different particle sizes.
来源	航空动力学报 ,2010,25(4):800-807 【核心库】
关键词	双流体模型 ; 超声速流动 ; 喷管 ; 射流 ; 两相流
地址	1. 北京理工大学宇航学院, 北京, 100081 2. 中国科学院,力学研究所, 北京, 100190
语种	中文
文献类型	研究性论文
ISSN	1000-8055
学科	航天(宇宙航行)
基金	国家自然科学基金
文献收藏号	CSCD:3863444