摘要
歼击机座舱空气分配系统的送风参数是影响舱内流场的重要因素。建立了供气流动边界条件计算模型以获得舱内流场计算的入口边界条件。分别采用该计算模型及传统的均匀供气边界条件对舱内流场进行了数值计算,并通过地面模拟实验验证了数值计算的准确性。计算结果和实验结果的对比表明,采用该计算模型的流场计算精度比传统方法有显著提高。
The inlet parameters of a fighter plane cockpit's air distribution system are important factors affecting flow field in cockpit. The air supplyflow boundary condition model was established to obtain the inlet boundary condition of flow field calculation. The flow field in cockpit was simulated by using above model and assuming uniform flow flux out of each air supply hole individually, and an experiment was carried out to prove the accuracy of both methods. The comparison between calculation and experiment results shows that the accuracy of above model is much higher than the accuracy of traditional method.
出处
《系统仿真学报》
CAS
CSCD
北大核心
2010年第1期65-70,82,共7页
Journal of System Simulation
基金
国家自然科学基金(30970904
60672181
30400137)
关键词
座舱
空气分配系统
数值模拟
流场
边界条件
cockpit
air distribution system
numerical simulation
flow field
boundary condition
作者简介
作者简介:沈海峰(1975-),男,江苏镇江人,博士生,研究方向为飞行器环境控制。
袁修干(1934-),男,浙江诸暨人,教授,博导,研究方向为航空航天环境控制及生命保障技术、人机环境系统计算机仿真、环境模拟试验技术等。