火箭发动机精清洗容器的结构设计及内流场特性模拟研究  

Structural Design and Simulation of Internal Flow Field Characteristic of Precision Cleaning Vessel for Rocket Engine

作　　者：李中[1] 刘玉涛[1] Li Zhong;Liu Yutao(Beijing Institute of Aerospace Testing Technology,Beijing 100074,China)

机构地区：[1]北京航天试验技术研究所,北京100074

出　　处：《机械科学与技术》2020年第10期1575-1579,共5页Mechanical Science and Technology for Aerospace Engineering

摘　　要：针对目前火箭发动机精清洗的常用方法,提出了一种60 L清洗容器的设计方法,通过容积计算、外形尺寸计算、强度计算、开孔补强计算、支腿校核计算等,完成图纸的绘制。基于Fluent数值模拟方法,对该清洗容器内流场特性进行仿真,得到全过程可视化压力场云图和速度场云图气液相图。同时,使用多项流模型中的VOF模型,捕捉整个容器内气-液相界面。模拟结果表明,数值模拟的预测与设计要求的预期结果比较一致,说明该设计可行性较高。A 60 L cleaning vessel for rocket engine was designed according to the common cleaning methods of rocket engine at present.And the volume,shape size,strength,hole reinforcement,leg check,the cleaning vessel werecalculatedto complete the structural design.Furthermore,according to the Fluent numerical analysis,the internal flow fields of the cleaning vessel were simulated.And visualized pressure and velocity field nephograms of the whole process were obtained.At the same time,the VOF model in the multi-flow model was used to simulate the gas-liquid interface in the whole vessel.The simulation results showed that the numerical simulation were in a good agreement with the expected results of the design requirements,which indicated that the design was feasible.

关 键 词：结构设计 数值模拟 流场特性 气-液两相 

分 类 号：TK221[动力工程及工程热物理—动力机械及工程]