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Lookup NU author(s): Dr Xin WangORCiD
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As a cleaner alternative to other fossil fuels, the demand for liquefied natural gas (LNG) is steadily increasing. This has resulted in technical innovations in the LNG supply chain. Examples of such innovations include the following: an increase in the capacity of LNG tank systems such as by using vertically stretched spherical tanks, the development of floating regasification units, floating LNG production, storage and offloading units (FLNGs), etc. Among the various LNG tank systems, the spherical LNG tank is considered to have good structural integrity and also good sloshing resistance. However, increases in the size of the tank and the emergence of new operation modes of LNG carriers such as their usage as shuttle tankers for FLNG can lead to a partially filled condition which was not common in the past. In this context, the prediction of the dynamic behaviors of liquid cargo inside the partially filled spherical tanks and their effects on the motions of the LNG carriers have become essential topics. In this study, numerical and experimental investigations into a partially filled spherical model tank were performed. The sloshing and swirling motion of the liquid and the forces exerted on the tank walls were studied. Fundamental information was obtained regarding the sloshing motion, such as the criteria for the generation of sloshing and swirling as a function of the excitation frequency and excitation amplitude, the coupling effect between the ship motion and the liquid motion, etc.
Author(s): Arai M, Cheng LY, Wang X, Okamoto N, Hata R, Karuka G
Publication type: Conference Proceedings (inc. Abstract)
Publication status: Published
Conference Name: The 13th International Symposium on Practical Design of Ships and Other Floating Structures (PRADS’16)
Year of Conference: 2016
Acceptance date: 31/05/2016
Library holdings: Search Newcastle University Library for this item
ISBN: 9788774754732
