Experimental investigations of a comb-like film cooling scheme

Hao Ming Li, Wahid Ghaly, Ibrahim Hassan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The performance of a simple slot is perfect, but it does not have structural integrity. A new advanced cooling scheme with perfect performance and practical structural integrity is presented. Based on the crucial effect of the counter-rotating vortex pair (CRVP) on the film cooling effectiveness (h), the new scheme is composed of a comb-like structure and a blind slot, in which the comb structure maintains the mechanical strength, and the blind slot is intended to eliminate the CRVP and produce a smooth coolant film. The new scheme is investigated experimentally with the transient thermochromic liquid crystal (TLC) technique. Two classic geometries, the cylindrical hole and the simple slot, were also measured. The agreement of their results with the published data validated the present experimental facilities. The experimental results of the Comb scheme demonstrated that, with practical structural integrity, the new scheme has perfect performance, which bears comparison with the simple slot. Consequently, the success of the Comb scheme proved the crucial CRVP effect on h.

Original languageEnglish
Title of host publicationFluid Applications and Systems
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791859056
DOIs
Publication statusPublished - 1 Jan 2019
EventASME-JSME-KSME 2019 8th Joint Fluids Engineering Conference, AJKFluids 2019 - San Francisco, United States
Duration: 28 Jul 20191 Aug 2019

Publication series

NameASME-JSME-KSME 2019 8th Joint Fluids Engineering Conference, AJKFluids 2019
Volume3B-2019

Conference

ConferenceASME-JSME-KSME 2019 8th Joint Fluids Engineering Conference, AJKFluids 2019
CountryUnited States
CitySan Francisco
Period28/7/191/8/19

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ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes

Cite this

Li, H. M., Ghaly, W., & Hassan, I. (2019). Experimental investigations of a comb-like film cooling scheme. In Fluid Applications and Systems [4695] (ASME-JSME-KSME 2019 8th Joint Fluids Engineering Conference, AJKFluids 2019; Vol. 3B-2019). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/AJKFluids2019-4695