空间热循环系统带载降温工况参数化分析

廖达雄; 张婉雨; 李春煜; 吴静怡

doi:10.13224/j.cnki.jasp.20210661

空间热循环系统带载降温工况参数化分析

doi: 10.13224/j.cnki.jasp.20210661

廖达雄^{1, 2},
张婉雨¹,
李春煜¹,
吴静怡^1,*, ,

1.
上海交通大学机械与动力工程学院，上海 200240
2.
中国空气动力研究与发展中心，四川绵阳 621000

基金项目: 国家自然科学基金重点资助项目（51936006）

详细信息

作者简介:
廖达雄（1963-），男，研究员，博士，主要从事空气动力学相关研究

通讯作者:
吴静怡（1963-），女，教授，博士，主要从事空气动力学相关研究。E-mail：jywu@sjtu.edu.cn

中图分类号: V216.5
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- 被引次数: 0
出版历程
- 收稿日期: 2021-11-21
- 网络出版日期: 2023-08-22

Parametric analysis of cooling process with load in large-space thermal cycle system

LIAO Daxiong^{1, 2},
ZHANG Wanyu¹,
LI Chunyu¹,
WU Jingyi^{1,*
, ,}

1.
School of Mechanical Engineering，Shanghai Jiao Tong University，Shanghai 200240，China
2.
China Aerodynamics Research and Development Center，Mianyang Sichuan 621000，China

摘要

摘要:
用数值模拟的方法，以承载和转运飞行器模型的模型车及其温度调节室为例，进行了大空间热循环系统带载降温工况入口参数的优化与分析。优化与分析的变量包括了低温流体的入口速度、入口温度和入口角度，优化目标为获得更高的模型车降温速率和温度均匀度。结果表明：模型车平均温度及温度标准差随入口速度的增大而逐渐减小，但变化率有所减缓。本研究所制定的降温策略1，即入口温度随降温时间的变化速率先快后慢，可获得最佳的降温速率和温度均匀度。入口角度对降温速率和温度均匀的影响相对较小。当入口角度变化范围处于−15°～15°时，模型车降温速率和温度均匀度基本维持不变，而在其他入口角度区间变化较大。
- 传热 /
- 瞬态过程 /
- 参数化研究 /
- 热循环系统 /
- 带载降温
Abstract:
Parameter optimization and analysis of cooling process with load in large-space thermal cycle system were carried out with numerical simulation methodology. A model car to carry and transfer the model and its temperature control chamber were taken as an example. The parameters for optimization and analysis consisted of inlet velocity, temperature and angle. The optimization was to obtain higher cooling rate and temperature uniformity. Results showed that the variation rate of average temperature and standard deviation of temperature of the model car increased with the inlet velocity, but the increment was decreased. According to the Strategy 1 proposed, in which inlet temperature decreased faster first and then slower, the optimal cooling rate and temperature uniformity could be obtained. The effect of the inlet angle on the cooling rate and temperature uniformity was less than the other two parameters. When the inlet angle varied between −15°−15°, the cooling rate and temperature uniformity of the model car barely changed, while it varied more in other angle ranges.
- heat transfer /
- transient process /
- parametric analysis /
- thermal cycle system /
- cooling with load

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图 1 热循环系统的温度调节室和模型车三维示意图

Figure 1. 3-D diagrams of temperature control chamber and model car

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图 2 4种不同的降温策略

Figure 2. Four different cooling strategies

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图 3 入口角度符号示意图

Figure 3. Schematic diagram of entrance angle symbol

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图 4 网格无关性验证结果

Figure 4. Results of grid independence verification

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图 5 温度监测点位置示意图

Figure 5. Schematic diagram of temperature monitoring points

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图 6 模型有效性验证结果^[26-27]

Figure 6. Validation results of the model^[26-27]

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图 7 不同入口速度下温度随时间变化曲线

Figure 7. Variation of temperatures versus time with different inlet velocities

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图 8 12 h时不同速度下温度调节室对称面温度云图

Figure 8. Contours of temperature on the symmetry plane of the temperature control chamber with different inlet velocities at 12 h

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图 9 最大温度标准差、最大温度极差随入口速度变化曲线

Figure 9. Standard and the maximum temperature difference with different inlet velocities

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图 10 12 h时不同降温策略下温度调节室对称面温度云图

Figure 10. Contours of temperature on the symmetry plane of the temperature control chamber under different strategies at 12 h

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图 11 不同温度下模型车平均温度随时间变化规律

Figure 11. Variation of average temperature of the model car versus time

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图 12 温度标准差随时间变化规律

Figure 12. Variation of temperature standard deviation versus time

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图 13 12 h时不同入口角度下送风口中心面（XZ平面）速度云图

Figure 13. Contours of velocity at middle XZ surface with different inlet angles at 12 h

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图 14 12 h时不入口同角度下送风口中心面（XZ平面）温度云图

Figure 14. Contours of temperature at middle XZ surface with different inlet angles at 12 h

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图 15 降温12 h时模型车平均温度随入口角度变化

Figure 15. Average temperature of the model car with respect to the inlet angle at 12 h

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图 16 不同角度下温度均匀性变化规律

Figure 16. Temperature uniformity parameters with different inlet angles

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