大功率速调管收集极流固耦合换热数值模拟

薛明; 丁耀根; 王勇

doi:10.11999/JEIT170117

大功率速调管收集极流固耦合换热数值模拟

doi: 10.11999/JEIT170117

2.
(中国科学院电子学研究所北京 100190) ②(中国科学院高功率微波源与技术重点实验室北京 100190)

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出版历程
- 收稿日期: 2017-02-10
- 修回日期: 2017-07-28
- 刊出日期: 2017-11-19

Liquid-solid Coupled Heat Transfer Simulation for the Collector of High Power Klystrons

2.
(Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China)

摘要

摘要: 目前对于液冷式速调管收集极的热分析均未考虑到冷却液流动状态对收集极整体的热分布及散热能力的影响。该文介绍了一种大功率速调管收集极散热过程中的流固耦合换热数值分析方法。以ANSYS Workbench中的CFX流体计算软件作为分析平台，对双层水套沟槽型收集极结构进行了适当简化，建立了3维参数化实体模型；仿真分析得到了冷却通道内部流体的3维流速分布、温升、压力分布及收集极体温度分布等结果，并与理论计算结果进行了对比，误差在合理范围内，对于速调管大功率微波测试和收集极的优化设计有较大的参考意义。
- 速调管 /
- 沟槽型收集极 /
- 流固耦合换热 /
- ANSYS Workbench
Abstract: At present the impact of flow regime on heat distribution and cooling capacity of collectors is not considered in the thermal analysis of the liquid-cooled collectors. The liquid-solid coupled heat transfer simulation method for the collectors of high power klystrons is presented. Using the CFX software in the platform of ANSYS Workbench, the model of the collector with two-layer water jacket and ditch grooves is simplified and established. The velocity distribution, the temperature rise, the pressure distribution of the flow and the temperature distribution on the collector are simulated. The results are contrasted with the theoretical results and the errors are reasonable. These simulation results are meaningful to the microwave high power test of klystrons and the optimal design of collectors.
- Klystron /
- Collector with ditch grooves /
- Liquid-solid coupled heat transfer /
- ANSYS Workbench

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参考文献(28)

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