电弧风洞模拟ZnS红外窗口表面温度响应  

Simulation of ZnS infared window surface temperature response by arc-heated wind tunnel

作　　者：袁竭[1] 隆永胜[1] 赵顺洪 周玮[1] 杨斌[1] 

机构地区：[1]中国空气动力研究与发展中心超高速空气动力研究所,四川绵阳621000

出　　处：《红外与激光工程》2017年第6期63-68,共6页Infrared and Laser Engineering

摘　　要：为了开展红外窗口地面试验研究,需用电弧风洞准确模拟出红外窗口表面温度响应过程,ZnS具有红外透明性,地面流场模拟试验中,在不影响其流场状态情况下较难获得其表面温度,因此无法模拟出红外窗口的温度响应过程。介绍了在电弧风洞上模拟ZnS红外窗口表面温度响应的方法,首先使用与ZnS相似热物性参数的2Cr13获得表面温度,接着模拟出红外窗口流场状态及温度响应过程,最后通过电弧风洞流场试验进行验证。研究结果表明:在150~250℃温度区间,2Cr13与ZnS在电弧风洞流场试验中的温度响应一致。使用与ZnS相似热物性参数的2Cr13测试ZnS表面温度实现电弧风洞模拟ZnS表面温度响应具有一定可行性。In order to develop related researches of infared window, it is necessary to simulate surface temperature response of infrared window exactly. As the property of infrared transparence, it is hard to obtain the surface temperature of ZnS without disturbing the flow field, thus it is not possible to simulate the temperature response process of infrared window. A method was introduced to simulate the surface temperature response of ZnS infared window by arc-heated wind tunnel. First, the surface temperature of ZnS was measured by using 2Cr13 which had similar thermophysical properties with ZnS. Then, the temperature response process of infrared window was simulated. Finally, several tests were taken to identify this method by arc-heated wind tunnel. The result shows that 2Cr13 and ZnS have the same temperature response properties when tested in arc-heated wind tunnel flow field at temperatures between 150-250 ℃ . It is reliable to measure the surface temperature of ZnS by using 2Cr13 which has similar thermophysical properties with ZnS in arc-heated wind tunnel simulation test.

关 键 词：ZNS 2Cr13 红外透明性 电弧风洞 

分 类 号：TJ76[兵器科学与技术—武器系统与运用工程]