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论文类型：期刊论文

发表时间：2013-04-01

发表刊物：INTERNATIONAL JOURNAL OF HYDROGEN ENERGY

收录刊物：SCIE、EI

卷号：38

期号：10

页面范围：4017-4023

ISSN号：0360-3199

关键字：Liquefied gas tanks; Thermal stratification; De-stratification

摘要：The phenomena of thermal stratification and de-stratification in liquefied gas tanks with heat leak through the side wall were researched numerically. The calculating model developed on ANSYS FLUENT 12.0 was verified through the experimental results from literature. The flow behaviors of the liquid and the temperature distributions at stratification and de-stratification stages were illustrated and the interaction between them was analyzed. When the liquid is stratified, the flow field presents a semi-circulation near the liquid surface with a plume-like flow under it and there exists a cold core under the surface which resisting the warmer circulating flow. The de-stratification of the stratified liquid begins when the circulating loops close with the resistance reduced because of the disappearance of the cold core, and once the circulation forms, it extends down to make the thermal stratifications disappear layer by layer from up to down. Copyright (C) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.