Investigation on Heat Exchange Enhanced by Sloshing
Investigation on Heat Exchange Enhanced by Sloshing
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DOI：
10.2514/6.2009-5397
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发表时间：
2009-08
期刊：
影响因子：
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通讯作者：
T. Himeno;Yutaka Umemura;Daizo Sugimori;S. Uzawa;Toshinori Watanabe;S. Nonaka
中科院分区：
文献类型：
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作者：
T. Himeno;Yutaka Umemura;Daizo Sugimori;S. Uzawa;Toshinori Watanabe;S. Nonaka
为了预测可重复使用运载火箭推进剂箱中的传热和晃动现象，对传热引起的压降和小型容器中液体的动态运动进行了实验观察和数值研究。实验证实了压降与液体运动之间的相关性。基于计算讨论了强化传热的机理。有人认为，液体剧烈运动引起的剪切流和涡流是导致密闭容器内压降的原因。此外，作为初步研究，尝试模拟剧烈晃动增强的气相和液相之间的传热和相变。
For the prediction of heat transfer coupled with sloshing phenomena in the propellant tanks of reusable launch vehicle, the pressure drop induced by heat transfer and the dynamic motion of liquid in sub-scale vessels were experimentally observed and numerically investigated. The correlation between the pressure drop and liquid motion was confirmed in the experiment. The mechanisms enhancing heat transfer were discussed based on the computation. It was suggested that shear flow and vortices induced by violent motion of liquid was suggested to cause the pressure drop in the closed vessel. In addition, as the preliminary investigation, the heat transfer and phase change between gaseous and liquid phase enhanced by violent sloshing were tried to be simulated.