Sector: Sensors, MEMS, Electronics
Atomistic Simulation of Electro-Osmosis in a Nanometer-Scale Channel
An atomistic simulation of an electro-osmostic flow in a 50 ° A wide channel is performed to examine models for such flows and study its physical details. The working fluid considered is a 1.1M mean [...]
Simulation of Flow in Structurally Programmable Microfluidic Channels
This paper describes the simulation of liquid filling in a structurally-programmable microfluidic delivery system being developed as part of a disposable biochip for clinical diagnostics. Flow control in the system is achieved by using passive [...]
Optimization of a MEMS Based Micro Capillary Pumped Loop for Chip-Level Temperature Control
Recent results in the microfluidics group at the Berkeley Sensor and Actuator Center and the Air Force Research Laboratory have shown that a micro-capillary pumped loop (micro-CPL) can move extreme amounts of heat (< 200 [...]
Microflows with Moving Boundaries: Experiment and Simulation
Surface forces and capillary effects can play a dominant role in fluidic microsystems. Therefore it is crucial for simulations to use accurate numerical approaches [1]. Furthermore experimental data gained from such surface dominated systems can [...]
Insects Separate Diffusing Particles in Parallel
The circulation of insects and other invertebrates transfers heat, mass, and momentum within micro-fluids through phase interfaces of complex geometry at size ranges important for developing compact energy and chemical systems. Pump size and vascular [...]
Use of Numerical Methods for Modeling and Simulating Capillary Driven Flows in Microchannels
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 [...]
A Stochastic Projection Method for Microchannel Flow
The construction and implementaion of a stochastic flow solver is described. The solver combines a spectral stochastic uncertainty representation scheme with a finite difference projection method for flow simulation. The uncertainty quantification scheme is based [...]
Three-Dimensional Single Step Flow Sheathing in Micro Cell Sorters
Goranovic G., Perch-Nielsen I., Larsen U.D., Wolff A., Kutter J., Telleman P., Bio/Chemical MicroSystems, DK
We present a novel microstructure that enables 3 dimensional hydrodynamic focusing of cells in a pressure driven micro cell sorter. This so-called "chimney" structure for single step coaxial sheathing was designed and optimized through simulation, [...]
A Fluid Dynamics Model for a Plasma Ion Acceleration System
We present preliminary results of some simulations for a plasma ion acceleration system, which we plan to construct. This system tires to model the complex interactions between the multiple species of ions (about 5) used [...]