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| Content Provider | The American Society of Mechanical Engineers (ASME) Digital Collection |
|---|---|
| Author | Zhang, Xinxin Zheng, Liancun He, Jicheng |
| Copyright Year | 2003 |
| Abstract | A theoretical analysis for the laminar momentum and energy boundary layer on a moving flat surface in power law fluids is made. The results indicate that while the plate moves in the direction of the flow, the boundary layer problem has a unique solution. Both skin friction and shear stress decrease with the increase of the ratio of the surface velocity to the free stream velocity and the power law n, the thermal diffusion ratio increases with the increase of n and ξ. However, in the case of the plate moving opposite to the flow, it is shown that the boundary layer solutions do not exist when velocity ratio ξ is larger than a positive critical value ξ*. For 0 < ξ < ξ*, the boundary layer solutions are found to be non-unique. Both superior and inferior solutions are noticeable. Skin friction and shear force for the superior solution decrease with the increase of the velocity ratio ξ. This is opposite for the inferior solution. The skin friction for both superior solution and inferior solution decrease with the increase of power law n. The result reveal the relations between momentum and thermal transfer, as well as the effects of parameters Pr, n and ξ on the transport process. |
| Sponsorship | Heat Transfer Division |
| Starting Page | 419 |
| Ending Page | 425 |
| Page Count | 7 |
| File Format | |
| ISBN | 0791836932 |
| DOI | 10.1115/HT2003-47339 |
| e-ISBN | 0791836797 |
| Volume Number | Heat Transfer: Volume 1 |
| Conference Proceedings | ASME 2003 Heat Transfer Summer Conference |
| Language | English |
| Publisher Date | 2003-07-21 |
| Publisher Place | Las Vegas, Nevada, USA |
| Access Restriction | Subscribed |
| Subject Keyword | Numerical simulation Heat and mass transfer Solidification Microsegregation Thermal diffusion Computer simulation Momentum Theoretical analysis Flow (dynamics) Mass transfer Fluids Heat Skin friction (fluid dynamics) Shear stress Transport processes Shear (mechanics) Heat transfer Boundary layers |
| Content Type | Text |
| Resource Type | Article |
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