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.
Fluid Flow Bifurcation in Micro-Channels
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Patel, S, & Drikakis, D. "Fluid Flow Bifurcation in Micro-Channels." Proceedings of the ASME 2003 International Mechanical Engineering Congress and Exposition. Fluids Engineering. Washington, DC, USA. November 15–21, 2003. pp. 111-116. ASME. https://doi.org/10.1115/IMECE2003-55615
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