Turbine blade having opposing wall turbulators

Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...

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416 96A, 415115, F01D 518

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active

057001324

ABSTRACT:
A turbine blade includes an airfoil having opposing first and second sides and an internal passage extending longitudinally therebetween. A plurality of first turbulator ribs extend from the first side into the passage, and a plurality of second turbulator ribs extend from the second side into the passage. The first and second ribs are different in configuration from each other for obtaining different heat transfer enhancements on the first and second sides for reducing pressure losses and cooling air flow requirements.

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J.C. Han et al, "Augmented Heat Transfer in Square Channels With Parallel, Crossed, and V-Shaped Angled Ribs," submitted to ASME Journal of Heat Transfer, Jun. 1990, pp. 1-23 and Figures 1-13.
S.D. Spring, "Improved Methods For Determining Heat Transfer," The Leading Edge, Winter 1987/1988, Contents page and pp. 4-9.
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