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[1]朱建国,徐向毅,周学锋.S形阀口气动性能和耦合强度分析及试验[J].火箭推进,2020,46(06):76-81.
　ZHU Jianguo,XU Xiangyi,ZHOU Xuefeng.Analysis and experimental investigation on aerodynamic performance and coupling structural strength of a S-shaped valve inlet[J].Journal of Rocket Propulsion,2020,46(06):76-81.
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S形阀口气动性能和耦合强度分析及试验

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V] 卷: 46 期数: 2020年06期 页码: 76-81 栏目: 研究与设计 出版日期: 2020-12-31
Title:
Analysis and experimental investigation on aerodynamic performance and coupling structural strength of a S-shaped valve inlet
文章编号:
1672-9374(2020)06-0076-06
作者:
朱建国1; 徐向毅2; 周学锋1
(1.西安航天动力研究所,陕西 西安 710100; 2.空军装备部驻西安地区军事代表局,陕西 西安 710065)
Author(s):
ZHU Jianguo1; XU Xiangyi2; ZHOU Xuefeng1
(1.Xi'an Aerospace Propulsion Institute, Xi'an 710100,China; 2.Xi'an Bureau,Air Force Equipment Department of China,Xi'an 710065,China)
关键词:
S形阀口;  气动性能;  耦合强度;  风洞试验
Keywords:
S-shaped valve inlet;  aerodynamic performance;  coupling structural strength;  wind tunnel test
分类号:
V432
文献标志码:
A
摘要:
针对某飞行器降温系统对进气阀口的高性能需求,开展了亚声速S形渐变流道的阀口设计,通过数值仿真和试验研究了S形阀口气动性能和耦合强度。采用压力远场边界、全场初始化的亚声速可压缩流场和背压法模拟流量的数值模拟方法,获得了不同流量工况和攻角状态下的气动性能,并通过风洞试验研究了进气阀口的实际气动性能,在来流0.7 Ma、流量160 kg/h下的总压恢复系数为0.978～0.999,结果表明数值仿真和试验结果一致,可以应用于类似进气道的气动性能分析和优化设计。采用流固界面压力插值映射单向流固耦合方法对进气阀口强度分析表明,强度安全裕度满足要求,经风洞试验的进气阀口结构完好无损
Abstract:
In order to meet the high performance requirement of an aircraft cooling system, the valve inlet with subsonic S-shaped gradual flow channel was designed, and the aerodynamic performance and coupling structural strength were studied by numerical simulation and experimental investigation.By setting the subsonic compressible flow field with pressure far-field boundary, full field initialization and simulating the flow by back pressure, the aerodynamic performance under different flow conditions and attack angles was obtained.The actual aerodynamic performance was also studied by wind tunnel test, and its total pressure recovery coefficient was 0.978～0.999 at an incoming flow of 0.7 Ma and 160 kg/h.The numerical simulation is consistent with the test results, which can be applied to the aerodynamic performance analysis and optimization design of similar inlet.The structure strength was simulated by one-way fluid-structure interaction method interpolating and mapping the pressure on the interface, and the simulation results shows that the strength safety margin meets the requirements, and the structure of valve inlet is in good condition after the verification test in vind tunnel.

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备注/Memo

收稿日期:2020-04-19; 修回日期:2020-06-01 基金项目:装备预研联合基金(6141B06240601) 作者简介:朱建国(1985—),男,硕士,高级工程师,研究领域为火箭发动机阀门

更新日期/Last Update: 1900-01-01