The effects of boundary curvature on hydrodynamic fluid flow; Calculation of slip lengths
Journal Article
·
· International Journal of Modern Physics B; (United States)
- Hannover Univ. (Germany). Inst. fuer Theoretische Physik
- Walther-Meissner-Inst. fur Tieftemperaturforschung, D-8046 Garching (Germany)
In this paper, the slip description of fluid flow past solid boundaries is reconsidered. The authors find that the traditional picture of fluid slip as a mean free path correction to hydrodynamics has to be revised whenever the particle scattering becomes close to specular. Then the microscopic slip length may diverge and it is the boundary's curvature which is decisive for the momentum transfer between fluid and wall. By explicitly considering surface roughness the authors can explain discrepancies between experimentally observed data and traditional slip theory.
- OSTI ID:
- 6890678
- Journal Information:
- International Journal of Modern Physics B; (United States), Journal Name: International Journal of Modern Physics B; (United States) Vol. 6:20; ISSN IJPBEV; ISSN 0217-9792
- Country of Publication:
- United States
- Language:
- English
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