Abstract
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.
Original language | English |
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Title of host publication | ASME 2003 International Mechanical Engineering Congress and Exposition |
Subtitle of host publication | Fluids Engineering Division |
Pages | 111-116 |
Number of pages | 6 |
DOIs | |
Publication status | Published - 21 Nov 2003 |
Event | 2003 ASME International Mechanical Engineering Congress - Washington, DC, United States Duration: 15 Nov 2003 → 21 Nov 2003 |
Conference
Conference | 2003 ASME International Mechanical Engineering Congress |
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Abbreviated title | ASME 2003 |
Country | United States |
City | Washington, DC |
Period | 15/11/03 → 21/11/03 |
Keywords
- fluid dynamics
- microchannels
- bifurcation