论文信息 - Convective Heat Transfer Inside Rotating Tubes

Convective Heat Transfer Inside Rotating Tubes

An unstructured finite volume code employing a non-linear eddy-viscosity turbulence closure is applied to the study of the internal flow through a square passage containing a 180 o U-bend. The tube walls are heated to represent the internal walls of a turbine-blade cooling passage. Both stationary and rotating tubes are considered. Three cases were chosen to match available experimental and computational data: the Reynolds number of each case was 10 5 based on bulk velocity and hydraulic diameter and rotation numbers were 0, +0.2 (counter-clockwise rotation) and ‐0.2 (clockwise rotation). The present turbulence model displays broad agreement with previous ASM computations, including similar discrepancies with data downstream of separation in the U-bend.

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