大功率速調(diào)管收集極流固耦合換熱數(shù)值模擬

薛明; 丁耀根; 王勇

doi:10.11999/JEIT170117

大功率速調(diào)管收集極流固耦合換熱數(shù)值模擬

doi: 10.11999/JEIT170117

2.
(中國(guó)科學(xué)院電子學(xué)研究所北京 100190) ②(中國(guó)科學(xué)院高功率微波源與技術(shù)重點(diǎn)實(shí)驗(yàn)室北京 100190)

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- 文章訪問數(shù): 1278
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出版歷程
- 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: 目前對(duì)于液冷式速調(diào)管收集極的熱分析均未考慮到冷卻液流動(dòng)狀態(tài)對(duì)收集極整體的熱分布及散熱能力的影響。該文介紹了一種大功率速調(diào)管收集極散熱過程中的流固耦合換熱數(shù)值分析方法。以ANSYS Workbench中的CFX流體計(jì)算軟件作為分析平臺(tái)，對(duì)雙層水套溝槽型收集極結(jié)構(gòu)進(jìn)行了適當(dāng)簡(jiǎn)化，建立了3維參數(shù)化實(shí)體模型；仿真分析得到了冷卻通道內(nèi)部流體的3維流速分布、溫升、壓力分布及收集極體溫度分布等結(jié)果，并與理論計(jì)算結(jié)果進(jìn)行了對(duì)比，誤差在合理范圍內(nèi)，對(duì)于速調(diào)管大功率微波測(cè)試和收集極的優(yōu)化設(shè)計(jì)有較大的參考意義。
- 速調(diào)管 /
- 溝槽型收集極 /
- 流固耦合換熱 /
- 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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