Title
Temperature Measurements Of Porous Media For Transpiration Studies
Abstract
A method of measuring the local temperature of a porous wall is discussed. Measurements are taken with temperature sensitive paint applied in thin coats to the wall. This technique was validated on a 40PPI, 7% relative density aluminum porous coupon. Measurements of discharge coefficients as well as downstream effectiveness data are included to verify the flow through the porous wall was unaltered by applying the paint. A maximum deviation in film-cooling effectiveness of 9% between the two cases with the majority of data falling within 4% was found, very similar to the experimental uncertainty of the rig. This excellent agreement between the repeated tests showed that by applying thermal paint to a wall of such porosity does not significantly affect the flow exiting the wall and hence the measurement technique can readily be applied to transpiration cooling studies at this scale. Methods of filtering the temperature sensitive paint on the porous wall are presented.
Publication Date
1-1-2010
Publication Title
46th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
Volume
2010-January
Number of Pages
1-10
Document Type
Article; Proceedings Paper
Personal Identifier
scopus
DOI Link
https://doi.org/10.2514/6.2010-6950
Copyright Status
Unknown
Socpus ID
85010903492 (Scopus)
Source API URL
https://api.elsevier.com/content/abstract/scopus_id/85010903492
STARS Citation
Natsui, G.; Ricklick, Mark A.; Nguyen, Cuong Q.; and Kapat, J. S., "Temperature Measurements Of Porous Media For Transpiration Studies" (2010). Scopus Export 2010-2014. 1643.
https://stars.library.ucf.edu/scopus2010/1643