Identification of dangerous LNG sloshing using a rapid sloshing model validated with computational fluid dynamics


Godderidge, Bernhard, Turnock, Stephen, Earl, Chris and Tan, Mingyi (2008) Identification of dangerous LNG sloshing using a rapid sloshing model validated with computational fluid dynamics. In, Chung, J.S., Grilli, S.T., Naito, S. and Ma, Q. (eds.) The Proceedings of the Eighteenth (2008) international Offshore and Polar engineering conference. 18th International Offshore and Polar Engineering Conference (ISOPE 2008) , International Society of Offshore and Polar Engineers (ISOPE), 170-177.

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Description/Abstract

A non-linear pendulum model is developed to represent the motion of a sloshing fluid in real time. The forces imposed by the sloshing fluid are identified using multiphase RANS CFD simulations and subsequently included in the pendulum sloshing model. The pendulum sloshing model was used to simulate sloshing induced by linear and angular motions at and near resonance. Good agreement between the CFD data and the pendulum sloshing model was observed. A blind simulation with multiple surge excitation components is carried out and the pendulum sloshing model agrees with the RANS CFD result.
Typically, the computational time of the pendulum is approximately 1/700th of real time.

Item Type: Book Section
ISBNs: 9781880653708 (hardback)
Related URLs:
Keywords: sloshing, multiphase, CFD, simplified sloshing models, nonlinear pendulum
Subjects: T Technology > TC Hydraulic engineering. Ocean engineering
V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering
Divisions: University Structure - Pre August 2011 > School of Engineering Sciences > Fluid-Structure Interactions
ePrint ID: 55704
Date Deposited: 05 Aug 2008
Last Modified: 27 Mar 2014 18:38
Publisher: International Society of Offshore and Polar Engineers (ISOPE)
URI: http://eprints.soton.ac.uk/id/eprint/55704

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