BEM – TechConnect Briefs

Fast Methods for Particle Dynamics in Dielectrophoretic and Oscillatory Flow Biochips

Chowdhury I., Wang X., Jandhyala V., University of Washington, US

This paper presents novel BEM for particle transport in microfluidic channels. Code performance and simulation results are presented

Adaptive temperature estimation in 3D single-cell dielectrophoretic traps using the boundary Element Method

Rosales C., Institute of High Performance Computing, A*STAR, SG

Application of dielectrophoresis techniques to biological particles is limited by the temperature increase of the suspension due to Joule heating. This temperature increase can be obtained from a Poisson equation, but the presence of the [...]

IDEA, a CAD Tool for the Design of Deformable Micro-Structures: Extension to the 2D Deformation of Arbitrarily-Shaped Membranes

Juillard J., Colinet E., SUPELEC, FR

A method for solving design problems involving coupled-field physics is presented: it is demonstrated in the case of the electrostatic actuation of a deformable micro-mirror. The focus of the present paper is on the inversion [...]

Boundary Integral Solution of Quasi-Linear Laplace Equation

Ding J., Ye W., Georgia Institute of Technology, US

An Integral approach based on the p-FTT acclerated BEM, which requires only surface discretization, has been developed for solving nonlinear equations. Examples of a Helmholtz and a quasi-linear Laplace problems in both a spherical domain [...]

Parallelization of BEM Electrostatic Solver Using a PC Cluster

Tang H-K, Yang Y-J, National Taiwan University, TW

In this paper, the application of parallel-processing techniques for electrostatic calculation is presented. Evaluating the pre-conditioner used for inverting the system matrix of a boundary-element-method (BEM) electrostatic solver (Fastlap) is one of the most time [...]

A pFFT Accelerated Linear Strength BEM Potential Solver

Willis D.J., White J.K., Peraire J., Massachusetts Institute of Technology, US

A linear strength, Galerkin Boundary Element Meth- od (BEM) for the solution of the three dimensional, direct potential boundary integral equation is presented. The method incorporates node based linear shape functions of the single and [...]

A Novel Approach for Volume-Integral Evaluation in the BEM

Ding J., Ye W., Georgia Institute of Technology, US

The need for efficient solutions to problems with complex 3-D geometries, such as those encountered in micro-electro-mechanical systems (MEMS), has led to the development of fast algorithms. Based on the accelerated Boundary Element Method (BEM), [...]

Fast BEM Solution for Coupled 3D Electrostatic and Linear Elastic Problems

Masters N.D., Ye W., Georgia Institute of Technology, US

This paper presents the development of a precorrected-FFT 3D BEM solver for linear elastic problems. This can be used with existing fast BEM solvers for electrostatics and Stokes flow to efficiently solve coupled problems, as [...]

Modeling of the Dielectrophoretic Forces Acting upon Biological Cells: A Numerical Comparison between Finite Element/Boundary Element Maxwell Stress Tensor Methods and Dipole Point Approach

Benselama A., Pham P., Canot É., CEA, FR

Maxwell Stress Tensor (MST) method is investigated in this study to quantify the degree of approximation made with the point dipole method in respect to dielectrophoresis (DEP) in microdevices. Latex particles and biological cells immersed [...]

A Methodology of Field-Emission Modeling with Space-Charge Effects

Tsai T-H, Tang H-K, Yang Y-J, National Taiwan University, TW

In this paper, we present a methodology for modeling and simulating 3D field-emission devices (FED) with space-charge effect. This approach applies a boundary-element-method (BEM) electrostatics solver [1] and an adaptive explicit integrator. The space charge [...]