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Effect of Jet Velocity on Heat Transfer in the Vicinity of a Rotating Disk
Pages: 366-370
Year: Issue:  2
Journal: Journal of Engineering Thermophysics

Keyword:  jet impingingrotatingconvective heat transfernumerical simulation;
Abstract: Numerical simulation was carried out in the present paper to study the flow and heat transfer characteristics on a heated plate under the coupled action of cyclone flow near rotating disk and jet impingement,simulating the grinding process.The effects of jet velocity on convective heat transfer on the heated plate were analyzed.The results show that the penetration capacity of impinging jet into the contact area between rotational disk and heated surface is suppressed under the cyclone flow induced by the rotating disk.Increasing the jet velocity helps to penetrate the boundary near the rotating disk.The coupled action of cyclone flow and air jet impingement is benefit for convective heat transfer enhancement near grinding region,especially at higher jet velocity.
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