Papers:
Computer Simulations of Electrokinetic Mass Transport in Microfabricated Fluidic Devices
A mathematical model and computer code for simulat-ing electrokinetic fluid and sample manipulations in micro-fabricated fluidic devices (microchips) are described. The model accounts for mass transport mechanisms such as electrophoretic migration, bulk fluid motion due [...]
Simulation of (Self-) Priming in Capillary Systems Using Lumped Models
Sesterhenn M., Mellmann J., Löhr M., Stierle B., Strobelt T., Sandmaier H., University of Stuttgart, DE
In this paper, a toolbox of lumped models for simulating (self-)priming and emptying of complex capillary networks is presented. Each model is a kind of an all-in-one-model, that considers inertia, friction, gravitation and capillarity and [...]
Modelling and Optimization of a Vaporizer for Inhalation Drug Therapy
de Heij B., de Rooij N.F., van der Schoot B., de Heij B., de Rooij N.F., Bo H., Hess J., University of Neuchätel, CH
We present a piezo-electrically driven droplet generator with a large number of nozzles working in parallel and operating in the Drop On Demand mode. This device is build as part of a system for Inhalation [...]
Prediction of the Pressure Drop Through Micromachined Particle Filters
Micro-filters are fabricated using MEMS technology, and both measurements and numerical calculations are carried out in order to estimate the power requirement in a micron-size particle collection process using the micro-filter. In order to numerically [...]
Dynamics in a Thermal Ink Jet: A Model for Identification and Simulation
In this paper a newly developed model for identification and simulation of dynamic phenomena in a thermal ink jet is presented. As a result of the modeling the calculation of the pressure propagation in the [...]
Microvalve Analysis: Wall Shear and Diffuser Effects
This work deals with the analysis of silicon passive microvalves. The analysed microvalves consist of a circular central mass suspended by two flexible beams anchored on a pyrex substrate. The mechanical and fluidic analysis are [...]
Hydrodynamic Dispersion of a Neutral Non-Reacting Solute in Electroosmotic Flows
To investigate hydrodynamic dispersion in electroosmotic ?ow, we have derived an asymptotic series solution for the problem of two-dimensional species transport in a tube or channel. This solution is applicable to the late-time diÆusive and [...]
Numerical Simulation of Boiling in a Porous Medium by Using Two-Phase Approach
The paper presents the results of a numerical study of heat and mass exchanges inside a porous matrix. The porous medium is in contact with a solid surface heated over boiling point and steeped in [...]
Non-Isothermal Gas Flow Through Rectangular Microchannels
The mass flow rate of a rarefied gas through a long rectangular channel caused by both pressure and temperature differences has been calculated applying the S model kinetic equation. The calculations have been carried out [...]
Coupled Fluid-Thermal-Structural Simulations in Microvalves and Microchannels
This paper presents the results of high-fidelity, 3-D simulations of coupled flow, heat-transfer and structural mechanics simulations of microchannels, micropumps, microvalves, and time-accurate simulations of a microoscillator. In each of these cases, the simulated results [...]
Simulation of Micro-Channel Heat Sinks for Optoelectronic Microsystems
Kreutz E.W., Pirch N., Ebert T., Wester R., Ollier B., Loosen P., Poprawe R., Rheinisch-Westfälische Technische Hochschule Aachen, DE
Water-cooled heat sinks are investigated both experimentally and theoretically as model systems to simulate the energy and mass transport in devices used for cooling of diode lasers. The design of the micro-channel heat sinks yields [...]
Characterization of DNA Flow through Microchannels
Advances in silicon fabrication technology enable the reproduction of laboratory apparatus, and theoretically biochemical processes, on a microscale. The implementation of this technology, however, necessitates additional study as fluid dynamics change at this scale and, [...]
The Valveless Diffuser Pump-A Numerical Design Study Using MATLAB
Olsson A., Stemme E., Stemme G., Stemme E., Stemme G., Department of Signals, Sensors and Systems, SE
A lumped-mass model is used to improve the design of the valveless diffuser pump. The model is implemented using MATLAB and tested for different previously reported pumps. The flow-pressure characteristics are predicted for different excitation [...]
Numerical Simulations of Flat-Walled Diffuser Elements for Valveless Micropumps
The flow directing capability of micromachined flat-walled diffuser elements for valve-less micropumps have been investigated. The diffuser element is a small angle flow channel with a rounded inlet and a preferably sharp outlet. The diverging-wall [...]
Journal: TechConnect Briefs
Volume: Technical Proceedings of the 1999 International Conference on Modeling and Simulation of Microsystems
Published: April 19, 1999
Industry sector: Sensors, MEMS, Electronics
Topics: Micro & Bio Fluidics, Lab-on-Chip, Modeling & Simulation of Microsystems
ISBN: 0-9666135-4-6