A higher-order BEM for wave action with structures——direct computation of free-term coefficient and CPV integral

TENG Bin; GOU Ying; NING De-zhi

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TENG Bin, GOU Ying, NING De-zhi. A higher-order BEM for wave action with structures——direct computation of free-term coefficient and CPV integral[J]. Haiyang Xuebao, 2006, 28(1): 132-138.

Citation:

TENG Bin, GOU Ying, NING De-zhi. A higher-order BEM for wave action with structures——direct computation of free-term coefficient and CPV integral[J]. Haiyang Xuebao, 2006, 28(1): 132-138.

TENG Bin, GOU Ying, NING De-zhi. A higher-order BEM for wave action with structures——direct computation of free-term coefficient and CPV integral[J]. Haiyang Xuebao, 2006, 28(1): 132-138.

Citation:

TENG Bin, GOU Ying, NING De-zhi. A higher-order BEM for wave action with structures——direct computation of free-term coefficient and CPV integral[J]. Haiyang Xuebao, 2006, 28(1): 132-138.

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A higher-order BEM for wave action with structures——direct computation of free-term coefficient and CPV integral

State Key Laboratory of Coastal and offshore Engineering, Dalian University of Technology, Dalian 116024, China

Received Date: 2005-03-14
Rev Recd Date: 2005-06-10

Abstract

Abstract

A direct method is implemented for computing the free-term coefficient and the Cauchy principal value integral in the highe-rorder boundary element method for potential flow.On the basis of the method a numerical model for wave diffraction and radiation from three-dimensional bodies is developed.Numerical experiments are carried out to examine the computation accuracy and convergence speed of the method for the free-term coefficient and Cauchy principal value integration.The numerical experiment shows that the computation result of the free-term coefficient is very accurate even for bodies with edges and corners,and the convergence speed is high for the Cauchy principle value integ ration from different meshes.Comparison is made with analytic solutions for wave forces on a truncated cylinder.It shows that the wave forces from the present model converge quickly to the analytic solutions.
- wave force,
- boundary element method,
- singular integral

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References(6)

References

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