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Author(s): R. Subramanya & S.T. Grilli
Abstract:
regridding in the computation
of nonlinear waves
R.
Subramanya & S.T.
Grilli
Ocean Engineering Department, University of Rhode Island,
ABSTRACT
An existing wave model based on fully nonlinear potential flow equations is
used to study wave breaking induced by fixed or moving boundaries.
The
solution approach combines a higher-order Boundary Element Method (BEM)
for solving Laplace's equation at a given time, and Lagrangian Taylor expansions
for updating both the free surface position and the potential in time.
A new
node regridding technique is introduced in the model to adaptively improve
resolution in selected regions of the free surface.
Applications are presented that
demonstrate the accuracy and the efficiency of the new technique.
INTRODUCTION
The fully nonlinear potential flow model by Grilli, Skourup and Svendsen * was
improved by Grilli & Subramanya *•* in order to increase both the accuracy and
the extent of computations for wave breaking induced by moving boundar...
Pages: 12
Size: 1,128 kb
Paper DOI: 10.2495/FD940161
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