Complementary Velocity and Heat Transfer Measurements in a Rotating Cooling Passage with Smooth Walls

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Conference Proceeding

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Excerpt: An experimental investigation was conducted on the internal flowfield of a simulated smooth-wall turbine blade cooling passage. The square cross-sectioned passage was manufactured from quartz for optical accessibility. Velocity measurements were taken using Particle Image Velocimetry for both heated and non-heated cases. Thin film resistive heaters on all four exterior walls of the passage allowed heat to be added to the coolant flow without obstructing laser access. Under the same conditions, an infrared detector with associated optics collected wall temperature data for use in calculating local Nusselt number. Abstract © ASME.


Copyright © 1998 American Society of Mechanical Engineers

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Source Publication

Proceedings of the ASME Turbo Expo