Papers:
A Surface Recombination Velocity Model for Liquid Flow in Microchannels
A number of years ago, Eyring introduced the free volume concept to explain why the viscosity of liquids decreased with increasing temperature while at the same time the density for most liquids also decreased (water [...]
Squeeze Film Damping Effect on the Dynamic Response of a MEMS Torsion Mirror
Analytical formulae for the squeeze film darnping torque on a MEMS torsion mirror are derived based on series solutions to the linearized Reynold's equation. The derivation is carried out under the assumption that the angular [...]
Computational Two-Dimensional Finite-Element Analysis of Flow Behavior Inside Microfluidic Amplifiers
Two-dimensional finite-element analysis was conducted using the commercial ANSYS (FLOTRAN) package to investigate nitrogen flow inside of two types of microfluidic amplifiers (wall attachment and jet deflection). Our simulations demonstrate that for supply pressures higher [...]
Unsteady Gaseous Flows in Tapered Microchannels
The aim of the paper is to contribute to the modeling of unsteady slip flows in rectangular microchannels with slowly varying cross-sections. A model is proposed for a microdiffuser submitted to sinusoidal pressure fluctuations at [...]
Finite Element Approach for Reactive Microfluidic Devices
Hsing I-M, Srinivasan R., Jensen K.F., Schmidt M.A., Hong Kong University of Science and Technology, HK
We report a finite element method (FEM) based model for simulating microfluidic devices with chemical reactions. The simulation approach incorporates a general mesh generation procedure, which allows us to explore different application-oriented designs of microfluidic [...]
Computational Modeling of Microfluid Devices with Free Surface Liquid Handling
Integrated Microfluidic Systems are the subject of great scientific and commercial interest for a wide range of applications, including the biomedical, environmental, automotive, aerospace, and defense. This paper presents the computational methodology used in the [...]
Modeling and Design Optimization of a Novel Micropump
The purpose of this paper is to give an overview about the design process of a new-type micropump. Four different coupled physical domains must be considered. The coupling effects on the pysical level are modeled [...]
Modeling of a Piezo Paddle Mikro Pump
In this paper an analytical method will be presentea to describe the behavior of a piezo electric paddle pump. For that, mechanical and fluidic mechanism are combined in a one mass oscillator model with fluidic [...]
Modeling Strategies for Microsystems
A hierarchical approach to microsystem modeling is outlined. On the device level, the operating behavior is analyzed on the basis of continuous field models To deal with the coupling effects typical of microsystems, various coupling [...]
Modeling 3-D Fluid Flow for a MEMS Laminar Proportional Amplifier
Athavale M.M., Li H.Y., Przekwas A.J., Piekarski B.H., Zeto R.J., Tenney S.M., CFD Research Corporation, US
Fluid flow in a microfluidic laminar proportional amplifier (LPA) was simulated using an advanced 3-D flow solver, CFD-ACE+. Pressure gains for single-stage and two-stage blocked output LPAs were calculated under a variety of flow conditions [...]
Modeling and Validation of Flow-Structure Interactions in Passive Micro Valves
Oosterbroek R.E., Schlautmann S., Berenschot J.W., Lammerink T.S.J., van den Berg A., Elwenspoek M.C., University of TWente, NL
This paper reports the modeling of the stationary flow-structure interaction of different types of micro check valves. Mathematical indirect, domain coupled and decoupled, finite element models as well as analytical approximations are made. The obtained [...]
Analysis of Pressure Balanced MEMS Valves
Based on simple plate theory and the Bernoulli equation, the effect of fluid flow on the deformation of fluid driven MEMS diaphragm microvalve is investigated analytically and numerically. The static instability of such a microsystem [...]
Journal: TechConnect Briefs
Volume: Technical Proceedings of the 1998 International Conference on Modeling and Simulation of Microsystems
Published: April 6, 1998
Industry sector: Sensors, MEMS, Electronics
Topic: Micro & Bio Fluidics, Lab-on-Chip
ISBN: 0-96661-35-0-3