F102 HEAT TRANSFER AND FLOW ON A LAMINAR ANNULAR IMPINGING JET IN A NARROW SPACEWITH CONFINING WALL(Heat transfer in complex system-1)

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概要

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• The numerical calculation was performed on the heat transfer and flow characteristics of a laminar annular impinging jet with confining insulated wall. Numerical values were obtained for the diameter ratio d/D = 0〜0.9, the dimensionless distance between nozzle and impingement surface h/r_0 = 0.25〜1.0, the Reynolds number Re = 100〜2000 at Prandtl number Pr=0.72 and Grashof number Gr = 3 x 10^3. The flow was divided into major flow and minor flow. Two kinds of recirculating flows on the upper insulated wall and impingement surface affected the local heat transfer on the impingement surface. Positions of maximum and minimum Nusselt number depend on the diameter ratio and the Reynolds number, respectively. In addition, the diameter ratio, in which mean Nusselt number becomes minimum, exists.

• 一般社団法人日本機械学会の論文
• 2000-10-01

著者

• Ichimiya Koichi

  Department Of Mechanical Systems Engineering Yamanashi University

• Ichimiya Koichi

  Department Of Mechanical System Engineering Yamanashi University

• Matsumoto Hiroshi

  Kyushu Electric Power Co Ltd

関連論文

• F102 HEAT TRANSFER AND FLOW ON A LAMINAR ANNULAR IMPINGING JET IN A NARROW SPACEWITH CONFINING WALL(Heat transfer in complex system-1)
• TED-AJ03-178 REVERSE FLOW ON THREE-DIMENSIONAL MIXED CONVECTION IN A HORIZONTAL SQUARE DUCT : IN CASE OF THREE HEATED WALLS OF THE DUCT

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