The paper presents a numerical study of incompressible fluid flow through micro-channels. Using a high-resolution numerical method (second-order accurate) in conjunction with a non-linear multigrid algorithm and the pseudo-compressibility approach, we have investigated micro-flows through straight channels, as well as through a sudden contraction-expansion geometry. For the straight channel geometry, the computational results are in reasonable agreement with the experimental data for various low Reynolds numbers. For the contraction-expansion geometry, the results reveal the flow transition to instability. This is manifested in the form of asymmetric separation downstream of the expansion.
|Number of pages||6|
|Journal||American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED|
|Publication status||Published - 2003|
|Event||2003 ASME International Mechanical Engineering Congress - Washington, DC., United States|
Duration: 15 Nov 2003 → 21 Nov 2003