Experiment study of Rayleigh-Bernard convection with upper heat plate effects

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AbstractNatural convection heat transfer appears in a wide range of smaller scales (in pipelines, canals and tanks) to huge scales (atmospheric, molten planet essence) that have been studied for a very long time for their energy importance. Natural convection depends on the geometric relationships and the temperature of the surfaces involved, and determines the type of flow, either laminar or turbulent, which may occur. Normal convection takes place between two parallel plates at different temperatures, and the subject is often studied when the temperature of the lower plate is higher than the temperature of the upper part – a well-known convection case called Rayleigh-Bainard convection. Certain examples of natural convection based on circular plates still restrict flow being unlimited. In engineering practice, this is certainly not the case so that in the proposed research the effect of side walls on the flow is, with no ideal for the process and in the real three-dimensional field.

Natural convection has an undeniable effect on thermal flow processes in engineering practice that are used in most mobile engineering systems, which have a parallel shape. These can contain all types of alcohol, so that the search inside the alcohol, which represents the majority of liquids that can be found in the tanks given. The temperature changes on the thermal flow processes that take place in the given tanks. Results obtained should show closely the actual flow systems in the given tanks as well as their impact on the deposition of solid particles that can be found in the given tanks.

 

Sadoon K.  Ayed, Mladen A.Tomic

Year: 2017, Volume: 3, Issue: 3, Page No: 261-270

International Journal of Computation and Applied Sciences (IJOCAAS)

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