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| Content Provider | Springer Nature Link |
|---|---|
| Author | Jeong, Jae Tack |
| Copyright Year | 2011 |
| Abstract | The free-surface shape and cusp formation are analyzed by considering a viscous flow arising from the superposition of a source/sink and vortex below the free surface where the strength of the source and vortex are arbitrary. In the analysis, Stokes’ approximation is used and surface tension effects are included, but gravity is neglected. The solution is obtained analytically by using conformal mapping and complex function theory. From the solution, shapes of the free surface are obtained, and the formation of a cusp on the free surface is discussed. Above some critical capillary number with a sink, the free-surface shape becomes singular and an apparent cusp should form on the free surface below a real fluid. On the other hand, no cusp would occur for sources of zero or positive strength. Typical streamline patterns are also shown for some capillary numbers. As the capillary number vanishes, the solution is reduced to a linearized potential flow solution. |
| Starting Page | 93 |
| Ending Page | 103 |
| Page Count | 11 |
| File Format | |
| ISSN | 09354964 |
| Journal | Theoretical and Computational Fluid Dynamics |
| Volume Number | 26 |
| Issue Number | 1-4 |
| e-ISSN | 14322250 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2011-01-29 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Free surface Spiral flow Source Sink Vortex Stokes flow Cusp Surface tension Capillary number Conformal mapping Computational Science and Engineering Classical Continuum Physics Engineering Fluid Dynamics |
| Content Type | Text |
| Resource Type | Article |
| Subject | Fluid Flow and Transfer Processes Condensed Matter Physics Computational Mechanics |
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