Papers – Page 1017 – TechConnect Briefs

Hierarchical Simulation for Microelectrofluidic System Performance Analysis

Zhang T., Dewey A., Duke University, US

With the sophisticated development of microelectro fluiidic devices and systems, system performance analysis is a key for system optimization and system re-design. Due to the increasing complexity and natural characteristics of microsystems, system performance is [...]

A Study on the Fluid-Structure Interaction using LSFEM

Lee S-H., Youn S-K., Yeon J-H., Jiang B-N., KAIST, KR

A study on the fluid-structure interaction using LSFEM is presented. To consider fluid-structure interaction, staggered scheme, which solves fluid and structure respectively by separate solvers in a predictor-corrector fashion, is used. To analyze fluid-structure interaction [...]

Modeling of FlowFET Characteristics

Leung Ki Y.-S., Schasfoort R.B.M., Sclautmann S., Renaud Ph., van den Berg A., EPFL, CH

Classical electrokinetic theory demonstrates that modu-lation of the z-potential at the shear plane can alter both the magnitude and direction of Electroosmotic Flow (EOF) induced in a microchannel at low driving field strengths. In the [...]

A Neural Network Based Macromodel for Microflow Sensors

Mikulchenko O., Rasmussen A., Mayaram K., Washington State University, US

A neural network based macromodel has been developed for a microflow sensor and implemented in the circuit simulator SPICE3f5. The model has been validated with numerical simulations and allows accurate and efficient simulation of microflow [...]

Modeling of Microfluidic Devices Using Scalable Algorithms

Stals L., Old Dominion University, US

We present parallel algorithms for the solution of micro uidic equations. The algorithm consists of the multigrid method in combination with adaptive finite elements. These methods give good algorithmic and parallel scalability and are thus [...]

Electroosmotic Flow in a Tube or Channel for Non-Negligible Zeta Potentials

Griffiths S.K., Nilson R.H., Sandia National Laboratories, US

Numerical methods based on a shooting technique are employed to determine the electric potential and fluid velocity in a tube and channel when the zeta poten- tial is not small. In addition, new analytical solutions [...]

Analysis of Sample Injection and Band-Broadening in Capillary Electrophoresis Microchips

Krishnamoorthy S., Giridharan M.G., CFD Research Corporation, US

An implicit finite-volume numerical scheme has been developed to solve the three-dimensional transport equations that govern the electroosmotic and electrophoretic phenomena. The scheme consists of solving the ion transport equation and electro-neutrality condition coupled with [...]

A Fast Stokes Solver for Generalized Flow Problems

Ye W., Wang X., White J.K., Massachusetts Institute of Technology, US

Computing drag forces on geometrically complicated 3-D micromachined structures, such asan entire comb resonator, is a challenging problem. The recently developed FastStokes solver, based on precorrected-FFT accelerated iterative methods, has made analyzing such problems much [...]

Discrete Impurity Effects in Silicon Quantom Dots

Milicic S.N., Vasileska D., Akis R., Gunther A., Goodnick S.M., Arizona State University, US

We have developed efficient self-consistent 3D Schrodinger-Poisson solver to model the energy level spectrum in silicon quantum dots. We find that the energy level spectrum in the dot can be easily tuned by varying the [...]

A Mathematical Model for Process Control in Laser Chemical Vapor Deposition

Nassar R., Dai W., Zhang C., Lan H., Maxwell J., Louisiana Tech University, US

Laser chemical vapor deposition is a free form technique capable of producing high aspect ratio microstructures of arbitrary shape. The process does not yet have a high resolution required for microfabrication. For this study, we [...]