冷热流体湍性射流增压过程中的温度特性研究  

Study on Temperature Characteristic of The Turbulent Jet Pressurization with Cold and Hot Fluid

作　　者：罗天洪[1] 陈才[1] 鲍延年[2] 范玉德[2] 马翔宇[1] 

机构地区：[1]重庆交通大学机电与汽车工程学院,重庆400074 [2]中国工程物理研究院化工材料研究所,四川绵阳621900

出　　处：《液压气动与密封》2015年第2期4-7,共4页Hydraulics Pneumatics & Seals

基　　金：国家科技重大专项"等静压成形成套设备"(2011ZX04001-081)

摘　　要：基于计算流体动力学(CFD)软件STAR-CCM+对冷热流体湍性射流增压过程进行了数值模拟,运用大涡模拟湍性射流模型及Smqgorinsky-Lilly亚格子模型,对冷热流体湍性射流增压过程中容器内部速度场、压力场和温度场进行模拟,获得了速度、压力变化及温度分布规律,揭示高压容器增压过程中冷热流体混合的温度特性。从CAE的角度分析了高压容器增压过程中冷然流体混合的压强变化和温度分布不均的原因,为高压容器增压和内部温度均匀化提供理论依据。Based on CFD software of STAR-CCM＋for cold and hot fluid turbulent jet pressurization process are simulated. By large eddy simulation of turbulent jet flow model and Smqgorinsky-Lilly and lattice model, and pressurization of cold and hot fluid turbulent jet inside the container during the process of velocity field, pressure field and temperature field was simulated, and the speed, the pressure change and temperature distribution, revealing the cold and hot fluid mixing in the process of high pressure vessel pressurization temperature characteris- tic. High pressure vessel is analyzed from the perspective of CAE pressurization LengRan fluid mixing in the process of the pressure change and temperature distribution of the reason, for high pressure vessel pressure and provide theoretical basis for internal temperature homogeni- zation.

关 键 词：高压容器 湍性射流 大涡模拟 卷吸 温度均匀化 

分 类 号：TH137[机械工程—机械制造及自动化] TK121[动力工程及工程热物理—工程热物理]