scholarly journals Mesh Update Techniques for Free-Surface Flow Solvers Using Spectral Element Method

2006 ◽  
Vol 27 (1-3) ◽  
pp. 137-149 ◽  
Author(s):  
Roland Bouffanais ◽  
Michel O. Deville
Keyword(s):  
Free Surface ◽  
Spectral Element Method ◽  
Free Surface Flow ◽  
Spectral Element ◽  
Surface Flow ◽  
Mesh Update ◽  
Element Method

A Finite Element Method for a Nonlinear Sloshing Problem

2003 ◽  
Author(s):  
J. H. Kyoung ◽  
J. W. Kim ◽  
K. J. Bai
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Free Surface ◽  
Impact Load ◽  
Surface Condition ◽  
Free Surface Flow ◽  
Surface Flow ◽  
Time Step ◽  
Nonlinear Sloshing ◽  
Element Method

A nonlinear sloshing problem in LNG tanker is numerically simulated. During excessive sloshing, the sloshing-induced impact load can cause a critical damage on the tank structure. Recently, this problem became one of important issues in FPSO design. A three-dimensional free surface flow in a tank is formulated in the scope of potential flow theory. The exact nonlinear free surface condition is satisfied numerically. A finite-element method based on Hamilton’s principle is employed as a numerical scheme. The problem is treated as an initial-value problem. The computations are made through an iterative method at each time step. The hydrodynamic loading on the pillar in the tank is computed and compared with other results.

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