大气总温传感器数值计算耦合分析技术  

Coupled analysis technique for numerical calculation of atmospheric total temperature sensor

作　　者：王玉芳[1] 赵芮宜 董素艳[3] 王毅[1] WANG Yufang;ZHAO Ruiyi;DONG Suyan;WANG Yi(China Aviation Industry Corporation Beijing Great Wall Measurement and Testing Technoloy Research Institute,Beijing 100095,China;Beihang University,Beijing 100083,China;Northwestern Polytechnical Univrsity,Xi’an 710072,China)

机构地区：[1]中国航空工业集团公司北京长城计量测试技术研究所,北京100095 [2]北京航空航天大学,北京100083 [3]西北工业大学,西安710072

出　　处：《兵器装备工程学报》2024年第S01期377-386,共10页Journal of Ordnance Equipment Engineering

摘　　要：借助自研软件开发及现有的商业软件建立阻滞室大气总温传感器模型,用UG软件构建几何模型,以商用Fluent软件模拟传感器的三维CFD数值,采用共形网格划分实现大气总温传感器的流体与固体界面网格匹配。采用Realizable k-ε湍流模型以及数值仿真批处理脚本的方法,对大气总温传感器流、固耦合仿真进行计算,提高了仿真计算效率。利用该方法对常温常压风洞对大气总温传感器的校准进行仿真分析,得出常温常压条件下马赫数大于1时,恢复修正系数基本不随马赫数变化。在常温、马赫数为0.6条件下,在静压条件±0.1atm时或总温条件为-25~45℃时,恢复修正系数变化幅度很小,数值仿真结果具有一定的准确性。In order to carry out research on the numerical calculation coupling analysis related technology of atmospheric total temperature sensor,and explore a set of methods for numerical simulation coupling calculation of atmospheric total temperature sensor,first of all,with the help of self-developed software development and existing commercial software to realize the creation of the block chamber atmospheric total temperature sensor model,UG software will be selected as the geometry creation engine,commercial Fluent software to simulate the three-dimensional CFD value of the sensor,using conformal meshing method.Achieve high-quality matching of fluid-solid interface grids for atmospheric total temperature sensors.The Realizable k-εturbulence model and numerical simulation batch script are used to calculate the flow and solid interaction simulation of the total atmospheric temperature sensor,which greatly improves the efficiency of simulation calculation.At the same time,this method is used to simulate and analyze the calibration of atmospheric total temperature sensor in normal temperature and pressure wind tunnel,and it is verified that under normal temperature and pressure conditions,when the Mach number is greater than 1,the recovery correction coefficient basically does not change with the Mach number.Under the condition of room temperature and Mach number 0.6,when the static pressure conditions change by±0.1atm or when the total temperature conditions change-25℃to 45℃,the recovery correction coefficient changes very little,and the numerical simulation results have certain accuracy.

关 键 词：数值模拟 几何参数化 大气总温传感器 CFD仿真 流-固耦合仿真 

分 类 号：TB9[一般工业技术—计量学]