Unsteady free convection flow over a three-dimensional stagnation point with internal heat generation or absorption
This paper considers the effect of heat generation proportional to p (T T ) ∞ − , where T is the local temperature and T ∞ is the ambient temperature, in unsteady free convection flow near the stagnation point region of a three-dimensional body. The fluid is cons...
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| Main Authors: | , , |
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| Format: | Conference or Workshop Item |
| Published: |
2011
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| Subjects: | |
| Online Access: | http://eprints.utm.my/id/eprint/46422/ http://waset.org/publications/7055/unsteady-free-convection-flow-over-a-three-dimensional-stagnation-point-with-internal-heat-generation-or-absorption |
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| Summary: | This paper considers the effect of heat generation proportional to p (T T ) ∞ − , where T is the local temperature and T ∞ is the ambient temperature, in unsteady free convection flow near the stagnation point region of a three-dimensional body. The fluid is considered in an ambient fluid under the assumption of a step change in the surface temperature of the body. The non-linear coupled partial differential equations governing the free convection flow are solved numerically using an implicit finite -difference method for different values of the governing parameters entering these equations. The results for the flow and heat characteristics when 2 ≤ p show that the transition from the initial unsteady-state flow to the final steady- state flow takes place smoothly. The behavior of the flow is seen strongly depend on the exponent p . |
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