TED-AJ03-395 A NUMERICAL STUDY OF THE HEAT TRANSFER DUE TO AN ARRAY OF SUBMERGED JETS IMPINGING ON A MOVING SURFACE-LAMINAR FLOW

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概要

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• Impingement cooling of a moving surface by an array of jets is investigated numerically. The jet-to-jet interaction, the geometrical parameters of the jet array, Reynolds number, and surface motion effects are investigated in a numerical study employing the finite difference technique. The SIMPLE algorithm is employed in the solution of the discretized conservation equations. The jets under consideration are submerged (jet fluid is the same as environment fluid), planar and exit the nozzle with a developed (flat) velocity profile. The flow is laminar regime and the impingement surface is isothermal. A correlation for the average Nusselt number is derived and entrance effects are addressed. The average heat transfer coefficient on a stationary plate varies approximately as Re^<0.0558> and the local distribution decays with distance from the impingement point as x_<-0.5>. Both results are consistent with experimental data. Surface motion reduces the overall heat transfer coefficient and provides a more uniform distribution.

• 一般社団法人日本機械学会の論文

著者

• Kaminski Deborah

  Rensselaer Polytechnic Institute Troy

• Salamah Samir

  General Electric-Power Systems

関連論文

• TED-AJ03-395 A NUMERICAL STUDY OF THE HEAT TRANSFER DUE TO AN ARRAY OF SUBMERGED JETS IMPINGING ON A MOVING SURFACE-LAMINAR FLOW

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