Effect of slip on transient liquid flow development in microchannels

The assumption usually made of spatially fully developed flow during transient establishment is revised here. A computational model for transient two-dimensional Navier-Stokes equations has been used to study both time and space development of flow due to a sudden pressure rise. Two kinds of boundary conditions are used, the no-slip condition as well as the slip condition encountered in micro-channels both for liquid and gas flows. Compressibility effects are however neglected in order to concentrate on the slip effect.