To validate BEM3D, the predictions have been benchmarked against the Finite Element Method (FEM) simulations and experimental data. It has been concluded that for no flow case BEM3D gives identical acoustics potential values against benchmarked FEM (COMSOL) predictions. For Mach number of 0.1, ...
for example, I must insert in electrostatic analysis the charge condition for all boundaries of one of my 3D object that has 20 surfaces.My question is: is there a way in comsol to select all the boundaries of the same solid with only one mouse click to assign the ...
energies Article Acoustic Noise Computation of Electrical Motors Using the Boundary Element Method Sabin Sathyan 1,* , Ugur Aydin 1 and Anouar Belahcen 1,2 1 Department of Electrical Engineering and Automation, Aalto University, PO Box, 15500 Helsinki, Finland; ugur.aydin@aalto.fi (U.A.); ...
We studied the practical implementation of these boundary conditions in the finite-element method and numerical simulation software COMSOL, explored its impact on degenerate modes, and illustrated it with examples of two-dimensional photonic crystal fiber and three-dimensional photonic crystal resonator. ...
本次网络研讨会中将简要介绍 COMSOL®多物理场仿真软件中对声学问题进行建模仿真的功能、算法,以及针对不同尺度声学模型的建模策略。在分析计算较大空间中声场问题时,采用有限元法往往会因为网格数量过多导致计算时间过长甚至难以收敛,而边界元法则可以较好地处理这些问题。基于长期的工程应用经验,来自浙江中科电声研发中...
Whereas exact 2D analytical solutions of this boundary-value problem can be obtained for simple geometries by means of conformal transformations, the common procedure in modern aerodynamics is to compute approximate solutions numerically using the boundary-element method, i.e., applying Green's function...
Sharp-interface Finite Element Method simulations using the commercial software COMSOL on body-conforming meshes are also provided for comparison. Favorable agreement between the two methods is observed. Since it is no longer necessary for the mesh to conform to the complex geometry, the grid system...
This study presents an application of two rigorous analytical based numerical schemes, so called the Boundary Element Method (BEM) and its hybrid form, the Dual Reciprocity Boundary Element Method (DRBEM). They are proven to be able to provide a computationally efficient means of handling single ...
Within the context of thefinite element method, these types of boundary conditions will have different influences on the structure of the problem that is being solved. Neumann Conditions The Neumann conditions are “loads” and appear in the right-hand side of the system of equations. In COMSOL...
A finite element technique for solving 2-D open boundary problems A finite element recursion technique is described for the solution of open-boundary electric and magnetic field problems. The method is to model the exteri... Lowther,D.,Rajanathan,... - 《IEEE Transactions on Magnetics》 被引...