摘要
为提高超音速设备对工件处理的均匀性,提出了一种双型线矩形超音速喷嘴。同时基于超音速喷管设计理论,分别对该矩形超音速喷嘴的两条型线进行设计,以获得相应的型线方程。建立了双型线矩形超音速喷嘴的流热耦合有限体积模型,进而对双型线矩形超音速喷嘴的入口压力和出口马赫数对喷嘴流场的影响展开分析。结果表明:双型线矩形超音速喷嘴的速度流场既能够达到设计的马赫数又满足均匀性要求,且能够使喷嘴出口得到横截面形状为矩形的流场,并分别总结了入口压力和出口马赫数对喷嘴流场的影响规律。
In order to improve the uniformity of workpiece processing for supersonic equipment,a double-line rectangular supersonic nozzle is proposed.Based on the design theory of supersonic nozzle,the constrained and expanded sections of the double-line rectangular supersonic nozzle are separately designed to obtain their corresponding line equations.The flow-thermal coupling finite volume model of the double-line rectangular supersonic nozzle is established with the compressible ideal gas state equation.Then the influence on the inlet pressure of the double-line rectangular supersonic nozzle and the influence of the velocity of the outlet on the flow field are simulated.The influence of inlet pressure and outlet Mach number on the flow field are also simulated respectively.The simulation results show that at the velocity,the flow field of the double-line rectangular supersonic nozzle not only achieves the designed Mach number and the uniformity requirements but also possesses a rectangular cross section.
作者
张影
宋华
杨健
高明昕
汪洋
李文斌
Zhang Ying;Song Hua;Yang Jian;Gao Mingxin;Wang Yang;Li Wenbin(School of Mechanical Engineering and Automation,University of Science and Technology LiaoNing,Liaoning Anshan 114051,China;Ansteel Iron&Steel Research Institutes,Liaoning Anshan 114009,China)
出处
《机械科学与技术》
CSCD
北大核心
2020年第9期1432-1438,共7页
Mechanical Science and Technology for Aerospace Engineering
基金
辽宁省自然科学基金项目(20180550572)资助。
关键词
超音速喷嘴
矩形
双型线
CFD
double-line rectangular supersonic nozzle
flow field
computational fluid dynamics
