A313 回転円盤上の衝突噴流内乱流統計量

概要

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An experimental study has been conducted for a round jet impinging perpendicularly onto a rotating disk. The mean velocity and turbulence statistics are measured by a single component LDV. The jet is issued from a pipe, in which the fully developed turbulent flow is ensured. The disk is set 5 diameters from the pipe exit. The Reynolds number based on the bulk velocity and the pipe diameter is set constant at 1.4E4 while the rotation speed of the disk has been varied between 0 and 1,500rpm. The velocity components in radial and circumferential directions are measured at some selected radial locations. The effect of the disk rotation has not become remarkable until the rotating speed of the disk reaches certain value, which has been indicated by the reduction of the half-width of wall-jet and the increase in the maximum radial mean velocity. The changes in the circumferential velocity component and in the turbulence statistics are fond to be marginal.
日本流体力学会の論文
2002-07-23