Steady Mass Transfer at the Wall of a Narrow Rectangular Stenosed Channel

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概要

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• In the present study abnormalities in the exchange of substance from fluid to wall of a narrow rectangular stenosed channel have been studied. The transfer of substance such as oxygen is considered, and is numerically estimated by calculating the nonlinear diffusion equation. Furthermore, both the local and the mean Sherwood numbers on the wall downstream of the stenosis are measured by the electrochemical technique, in which a redox system comprises the electrolyte and the test nickel electrode. Measurements are carried out in the Reynolds number range of 100-300 and a Schmidt number of about 1000. consequently, the local Sherwood number is maximum near a reattaching point, and it asymptotically decreases at the wall downstream of this point and steeply decreases at the upstream wall. Above Re=130, the mean Sherwood number on the wall just behind the stenosis is lower than that away from the stenosis.

• 一般社団法人日本機械学会の論文

著者

• Yamaguchi Ryuhei

  Department Of Mechanical Engineering Shibaura Institute Of Technology

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