Temperature field analysis of liquid stratification for LNG tank based on orthogonal ridgelet finite element method

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• 作者：Bin Zhao ; Cheng-Jiang Shi ; Xue-Feng Yang…
• 刊名：Journal of Thermal Analysis and Calorimetry
• 出版年：2016
• 出版时间：July 2016
• 年：2016
• 卷：125
• 期：1
• 页码：557-562
• 全文大小：620 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Sciences
  Polymer Sciences
  Physical Chemistry
  Inorganic Chemistry
  Measurement Science and Instrumentation
  
• 出版者：Akad茅miai Kiad贸, co-published with Springer Science+Business Media B.V., Formerly Kluwer Academic
• ISSN：1572-8943
• 卷排序：125

文摘

Temperature change of liquid stratification for LNG tank is more complex; therefore, it is necessary to carry out temperature field analysis of liquid stratification for LNG tank, and the orthogonal ridgelet finite element method is constructed by combining the traditional finite element method and orthogonal ridgelet transformation. Firstly, the basic characteristics of orthogonal ridgelet transform are studied. Secondly, the theory models of liquid stratification of LNG tank are studied. Thirdly, the temperature field analysis model of liquid stratification orthogonal ridgelet finite element for LNG tank is constructed. Finally, the temperature field analysis of liquid stratification of LNG tank is carried out, and the temperature changing rules of liquid stratification for LNG tank are obtained based on the traditional finite element method, B-spline wavelet finite element method, orthogonal ridgelet finite element method, and field test, and comparison of results shows that the orthogonal ridgelet finite element method has highest computing precision and efficiency. In addition, the effect of leakage heat intensity on time of rolling caused by liquid stratification of LNG tank is obtained.KeywordsTemperature fieldLNG tankOrthogonal ridgelet finite element