Local heat transfer on a finite width surface with laminar boundary layer flow
The effect of a lateral discontinuity in the thermal boundary conditions in two dimensional laminar flow on a flat plate is investigated with numerical and analytical modeling. When the thermal and momentum boundary layers start at the same location, the resulting self-similar two dimensional bounda...
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Published in | Applied thermal engineering Vol. 101; pp. 686 - 692 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
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Elsevier Ltd
25.05.2016
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Abstract | The effect of a lateral discontinuity in the thermal boundary conditions in two dimensional laminar flow on a flat plate is investigated with numerical and analytical modeling. When the thermal and momentum boundary layers start at the same location, the resulting self-similar two dimensional boundary layer equations were solved numerically. For flow with an unheated starting length, three dimensional numerical simulations were required. For both the two and three dimensional thermal simulations, the Blasius solution for a two dimensional momentum boundary layer was assumed. It is found that all the Nusselt numbers collapse to a single curve when graphed as a function of a spanwise similarity variable. Simple correlations for the local Nusselt number on a rectangular flat plate are presented for a variety of boundary conditions. |
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AbstractList | The effect of a lateral discontinuity in the thermal boundary conditions in two dimensional laminar flow on a flat plate is investigated with numerical and analytical modeling. When the thermal and momentum boundary layers start at the same location, the resulting self-similar two dimensional boundary layer equations were solved numerically. For flow with an unheated starting length, three dimensional numerical simulations were required. For both the two and three dimensional thermal simulations, the Blasius solution for a two dimensional momentum boundary layer was assumed. It is found that all the Nusselt numbers collapse to a single curve when graphed as a function of a spanwise similarity variable. Simple correlations for the local Nusselt number on a rectangular flat plate are presented for a variety of boundary conditions. |
Author | Gori, F. Taliaferro, M.E. Angelino, M. Goldstein, R.J. |
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Cites_doi | 10.1016/0026-2714(72)90704-4 10.1115/1.1569507 10.1038/39827 10.4314/ijest.v6i2.3 10.1002/aic.690180606 10.1115/1.1569506 10.2514/2.6595 10.1016/0017-9310(85)90216-9 |
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Keywords | Forced convection Nusselt number Finite lateral span Electronic cooling Laminar |
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SubjectTerms | Electronic cooling Finite lateral span Forced convection Laminar Nusselt number |
Title | Local heat transfer on a finite width surface with laminar boundary layer flow |
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