Stemme E. – TechConnect Briefs

Numerical Simulations of Flat-Walled Diffuser Elements for Valveless Micropumps

Olsson A., Stemme E., Stemme G., Stemme E., Stemme G., Royal Institute of Technology, SE

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 [...]

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 [...]