An investigation was conducted to examine the effect of a row of
cylindrical surface dimples in reducing the heat load on a turbine
blade leading edge model. The models consisted of a foam
cylindrical leading edge with a flat afterbody fabricated from
Plexiglass. A single coolant hole was located 21.5- from the
leading edge, angled 20- to the surface and 90- from the streamwise
direction. The leading edge diameter to hole diameter ratio was D/d
= 18.7. A row of seven dimples was placed upstream of one of the
coolant holes. Infrared thermography techniques were used to
determine the adiabatic effectiveness, ? and heat transfer
coefficient, h, distributions so that the net heat flux reduction
could be calculated. Freestream conditions consisted of Reynolds
numbers of 60,000 and 30,000 at both low turbulence and high
turbulence.
General
Imprint: |
Biblioscholar
|
Country of origin: |
United States |
Release date: |
October 2012 |
First published: |
October 2012 |
Authors: |
Paul G Frisinger
|
Dimensions: |
246 x 189 x 9mm (L x W x T) |
Format: |
Paperback - Trade
|
Pages: |
174 |
ISBN-13: |
978-1-249-59407-9 |
Categories: |
Books >
Social sciences >
Education >
General
|
LSN: |
1-249-59407-3 |
Barcode: |
9781249594079 |
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