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核态池沸腾传热现象中的重力标度规律
Authors
杜王芳
赵建福
Publication date
5 February 2020
Publisher
Abstract
沸腾过程极强的热传递能力使其在地面常重力环境和空间微重力环境都有着广泛应用.重力是影响沸腾传热性能的重要因素,关于重力影响规律的研究对相关空间应用具有重要意义.本文回顾了有关核态池沸腾传热重力标度规律的研究现状和进展,特别对基于地基短时失重飞机准稳态沸腾实验结果提出的Raj-Kim-McQuillen重力标度律模型(RKM模型)进行了详细评述,讨论了其中关于核态池沸腾曲线起、止端点(沸腾起始点和临界热流点)及其渐近性能的基本假设和隐含假设.通过与经验知识(包括实验观测数据和数值模拟结果)比较,明确了RKM模型的贡献与不足,建议了进一步的低重力实验和深入系统的数值模拟等,以推进该领域研究深入开展
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Institute Of Mechanics,Chinese Academy of Sciences
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Last time updated on 25/11/2020