scholarly journals A numerical study of the second-order wave excitation of ship springing by a higher-order boundary element method

2014 ◽  
Vol 6 (4) ◽  
pp. 1000-1013 ◽  
Author(s):  
Yan-Lin Shao ◽  
Odd M. Faltinsen
Keyword(s):  
Boundary Element Method ◽  
Boundary Element ◽  
Numerical Study ◽  
Higher Order ◽  
Second Order ◽  
Wave Excitation ◽  
Element Method

Boundary element method in numerical study of three-dimensional Stokes flows in channels of arbitrary shape

2012 ◽  
Vol 9 (1) ◽  
pp. 94-97
Author(s):  
Yu.A. Itkulova
Keyword(s):  
Boundary Element Method ◽  
Boundary Element ◽  
Cross Section ◽  
Numerical Study ◽  
Three Dimensional ◽  
Cylindrical Tube ◽  
Variable Cross Section ◽  
Variable Cross ◽  
Periodic Flows ◽  
Element Method

In the present work creeping three-dimensional flows of a viscous liquid in a cylindrical tube and a channel of variable cross-section are studied. A qualitative triangulation of the surface of a cylindrical tube, a smoothed and experimental channel of a variable cross section is constructed. The problem is solved numerically using boundary element method in several modifications for a periodic and non-periodic flows. The obtained numerical results are compared with the analytical solution for the Poiseuille flow.

scholarly journals A Technique to Remove Second Order Singularity Application in the Boundary Element Method for Elastoplasticity Plane Stress Analysis

2010 ◽  
Vol 8 (1) ◽  
Author(s):  
S.A. Bakar ◽  
A.L. Saleh
Keyword(s):  
Boundary Element Method ◽  
Boundary Element ◽  
Second Order ◽  
Timber Beam ◽  
Singularity Problem ◽  
Strain Formulation ◽  
Incremental Formulation ◽  
Plastic Stage ◽  
Plane Stress Analysis ◽  
Element Method

This paper presents a technique to establish the strain incremental formulation in the boundary element method applied to elastoplasticity problem. In this technique, the application of second order singularity problem is avoided, and only first order singularity problem is sufficient. The proposed technique is applied to analyse a timber beam structure at the plastic stage. The solution is compared with existing strain formulation method proposed by established publication. The result gives an improved solution compared with the existing method. The proposed technique is a simplified formulation where there is no second order singularity involved in the formulation.

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