低温环境试验室稳态冷工况温度场设计与仿真

王希亮; 李栋; 李颖行; 金子琦; 孟祥宇; 唐伟健; 杨国辉

doi:10.7643/issn.1672-9242.2026.04.003

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装备环境工程 ›› 2026, Vol. 23 ›› Issue (4) : 23-29. DOI: 10.7643/issn.1672-9242.2026.04.003

武器装备

低温环境试验室稳态冷工况温度场设计与仿真

王希亮, 李栋, 李颖行, 金子琦, 孟祥宇, 唐伟健, 杨国辉^*

作者信息 +

Design and Simulation of Steady-state Cold Temperature Field in a Low-temperature Environmental Laboratory

WANG Xiliang, LI Dong, LI Yinghang, JIN Ziqi, MENG Xiangyu, TANG Weijian, YANG Guohui^*

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文章历史 +

摘要

目的为保证环境试验条件指标符合GJB150A技术要求,对某火炮低温环境试验室稳态冷工况进行设计与仿真。方法对该试验室温度场进行气流组织研究,确定最佳送风方式及进、出风口的位置排布;通过有限元仿真,结合稳态冷工况下的热损耗理论计算最佳送风速度;通过仿真与实验结果对比验证结构设计的合理性和计算值的准确性。结果仿真表明,送风速度为2.0 m/s时温度极差最小,而送风速度为1.9 m/s时温度均匀性更优、气流分布更均匀,该送风速度下实验结果和仿真结果大致相符,仿真与实验对应测点温度标准差分别为0.196和0.152,实验温度均匀性达到±0.33 ℃。结论确定了火炮高低温试验室的最佳送风方式为侧送侧回送风方式,最佳送风速度为1.9 m/s,此时温度均匀性最好,且满足GJB150A中对低温试验温度条件的要求。

Abstract

To ensure that the environmental test condition indicators meet the technical requirements of GJB150A, the work aims to design and simulate a steady-state cold working condition for a certain artillery low-temperature environmental laboratory. The air distribution of the temperature field in the laboratory was studied to determine the optimal air supply mode and the layout of air supply and return outlets. Combined with the theoretical calculation of heat loss under steady-state cold working condition, the optimal air supply velocity was obtained by means of finite element simulation. The rationality of the structural design and the accuracy of the calculated values were verified by comparing the simulation results with the experimental data. Simulation results showed that the temperature range reached the minimum when the air supply velocity was 2.0 m/s, while the temperature uniformity was better and the air distribution was more uniform when the air supply velocity was 1.9 m/s. Under this air supply velocity, the experimental results were basically consistent with the simulation results. The temperature standard deviations of the corresponding measuring points from the simulation and experiment were 0.196 and 0.152, respectively, and the experimental temperature uniformity reached ±0.33 ℃. It is determined that the optimal air supply mode for the artillery high and low temperature laboratory is the side supply and side return mode, and the optimal air supply velocity is 1.9 m/s. Under such conditions, the temperature uniformity is the best and can meet the requirements for low-temperature test conditions specified in GJB150A.

导出引用

王希亮, 李栋, 李颖行, 金子琦, 孟祥宇, 唐伟健, 杨国辉. 低温环境试验室稳态冷工况温度场设计与仿真[J]. 装备环境工程. 2026, 23(4): 23-29 https://doi.org/10.7643/issn.1672-9242.2026.04.003

WANG Xiliang, LI Dong, LI Yinghang, JIN Ziqi, MENG Xiangyu, TANG Weijian, YANG Guohui. Design and Simulation of Steady-state Cold Temperature Field in a Low-temperature Environmental Laboratory[J]. Equipment Environmental Engineering. 2026, 23(4): 23-29 https://doi.org/10.7643/issn.1672-9242.2026.04.003

中图分类号： TG172

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