microchannel – Page 3 – TechConnect Briefs

Uncertainty Quantification in a Reacting Electrochemical Microchannel Flow Model

Debusschere B., Najm H., Matta A., Shu T., Knio O., Ghanem R., Le Maitre O., Sandia National Laboratories, US

We describe a technique for modeling electrochemical microchannel flows including the propagation of uncertainty from model parameters and boundary conditions to the model predictions. The approach uses a pseudo-spectral stochastic construction with a polynomial chaos [...]

Simulation of Electrically-Excited Flows in Microchannels for Mixing Application

Meisel I., Ehrhard P., Forschungszentrum Karlsruhe GmbH, DE

In the present paper we propose a method for improved mixing in microchannels. The basic idea is to excite a secondary vortex flow around an obstacle within the micromixer by applying an external oscillatory electrical [...]

Use of Numerical Methods for Modeling and Simulating Capillary Driven Flows in Microchannels

Quinte A., Halstenberg S., Eggert H., Forschungszentrum Karlsruhe, DE

Today, medical test strips are used for rapid diagnostics and the quick and easy determination of biomedically relevant parameters, such as the content of glucose of the blood. For the transport of the test uid [...]

Modeling of Blood Flow in Simple Microchannels

Trebotich D., Chang W., Liepmann D., University of California-Berkeley, US

Optimal design of medical micro-assay systems will require computational modeling capabilities. Most existing models are based on macroscale experiments with smallest length dimensions comparable to that of a capillary due to the fact that the [...]

Non-Isothermal Gas Flow Through Rectangular Microchannels

Sharipov F., Universidade Federal do Parana, BR

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 [...]