Study on Flow Characteristics of Radial Inflow Rotating Disk Cavity Based on PIV Test
By applying PIV technology to a simple disk cavity with radial inflow,studies the influence of rotating Reynolds number and flow coefficient on the swirl number and flow field in the disk cavity,obtaining the fitting formula of the inlet swirl number Cin with Ro and the nonlinear correction coefficient Ki.Thus an method for modifying the nonlinear model is proposed for better application in engineering.It is found that the increase of the rotating Reynolds number will lead to the decrease of the cyclone number,making the entire flow field achieve more stable stratification.And the increase of the flow coefficient will result in the increase of the cyclone number,and meanwhile make the particles in the flow field move in a more regular way along the rotation direction of the rotating disk.
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