Experimental results are presented for a double wall cooling arrangement which simulates a portion of a combustor liner of a gas turbine engine. The results are collected using a new experimental facility designed to test full-coverage film cooling and impingement cooling effectiveness using either cross flow, impingement, or a combination of both to supply the film cooling flow. The present experiment primarily deals with cross flow supplied full-coverage film cooling for a sparse film cooling hole array that has not been previously tested. Data are provided for turbulent film cooling, contraction ratio of 1, blowing ratios ranging from 2.7 to 7.5, coolant Reynolds numbers based on film cooling hole diameter of about 5000–20,000, and mainstream temperature step during transient tests of 14 °C. The film cooling hole array consists of a film cooling hole diameter of 6.4 mm with nondimensional streamwise (X/de) and spanwise (Y/de) film cooling hole spacing of 15 and 4, respectively. The film cooling holes are streamwise inclined at an angle of 25 deg with respect to the test plate surface and have adjacent streamwise rows staggered with respect to each other. Data illustrating the effects of blowing ratio on adiabatic film cooling effectiveness and heat transfer coefficient are presented. For the arrangement and conditions considered, heat transfer coefficients generally increase with streamwise development and increase with increasing blowing ratio. The adiabatic film cooling effectiveness is determined from measurements of adiabatic wall temperature, coolant stagnation temperature, and mainstream recovery temperature. The adiabatic wall temperature and the adiabatic film cooling effectiveness generally decrease and increase, respectively, with streamwise position, and generally decrease and increase, respectively, as blowing ratio becomes larger.
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Research-Article
Effects of Double Wall Cooling Configuration and Conditions on Performance of Full-Coverage Effusion Cooling
Nathan Rogers,
Nathan Rogers
Propulsion Research Center,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall,
Huntsville, AL 35899;
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall,
Huntsville, AL 35899;
Department of Mechanical and
Aerospace Engineering,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall,
Huntsville, AL 35899
Aerospace Engineering,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall,
Huntsville, AL 35899
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Zhong Ren,
Zhong Ren
Propulsion Research Center,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall,
Huntsville, AL 35899;
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall,
Huntsville, AL 35899;
Department of Mechanical and
Aerospace Engineering,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall,
Huntsville, AL 35899
Aerospace Engineering,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall,
Huntsville, AL 35899
Search for other works by this author on:
Warren Buzzard,
Warren Buzzard
Propulsion Research Center,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall,
Huntsville, AL 35899;
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall,
Huntsville, AL 35899;
Department of Mechanical and
Aerospace Engineering,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall,
Huntsville, AL 35899
Aerospace Engineering,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall,
Huntsville, AL 35899
Search for other works by this author on:
Brian Sweeney,
Brian Sweeney
Propulsion Research Center,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall,
Huntsville, AL 35899;
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall,
Huntsville, AL 35899;
Department of Mechanical and
Aerospace Engineering,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall,
Huntsville, AL 35899
Aerospace Engineering,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall,
Huntsville, AL 35899
Search for other works by this author on:
Nathan Tinker,
Nathan Tinker
Propulsion Research Center,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall,
Huntsville, AL 35899;
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall,
Huntsville, AL 35899;
Department of Mechanical and
Aerospace Engineering,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall,
Huntsville, AL 35899
Aerospace Engineering,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall,
Huntsville, AL 35899
Search for other works by this author on:
Phil Ligrani,
Phil Ligrani
Professor
Eminent Scholar
Propulsion Research Center,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall S236,
Huntsville, AL 35899;
Eminent Scholar
Propulsion Research Center,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall S236,
Huntsville, AL 35899;
Department of Mechanical and
Aerospace Engineering,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall S236,
Huntsville, AL 35899
e-mail: pml0006@uah.edu
Aerospace Engineering,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall S236,
Huntsville, AL 35899
e-mail: pml0006@uah.edu
Search for other works by this author on:
Keith Hollingsworth,
Keith Hollingsworth
Professor
Propulsion Research Center,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall S236,
Huntsville, AL 35899;
Propulsion Research Center,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall S236,
Huntsville, AL 35899;
Department of Mechanical and
Aerospace Engineering,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall S236,
Huntsville, AL 35899
Aerospace Engineering,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall S236,
Huntsville, AL 35899
Search for other works by this author on:
Fred Liberatore,
Fred Liberatore
Combustion Engineering, Solar Turbines, Inc.,
2200 Pacific Highway,
Mail Zone E-4,
San Diego, CA 92186-5376
2200 Pacific Highway,
Mail Zone E-4,
San Diego, CA 92186-5376
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Rajeshriben Patel,
Rajeshriben Patel
Combustion Engineering, Solar Turbines, Inc.,
2200 Pacific Highway,
Mail Zone E-4,
San Diego, CA 92186-5376
2200 Pacific Highway,
Mail Zone E-4,
San Diego, CA 92186-5376
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Shaun Ho,
Shaun Ho
Combustion Engineering, Solar Turbines, Inc.,
2200 Pacific Highway,
Mail Zone E-4,
San Diego, CA 92186-5376
2200 Pacific Highway,
Mail Zone E-4,
San Diego, CA 92186-5376
Search for other works by this author on:
Hee-Koo Moon
Hee-Koo Moon
Aero/Thermal and Heat Transfer,
Solar Turbines, Inc.,
2200 Pacific Highway,
Mail Zone C-9,
San Diego, CA 92186-5376
Solar Turbines, Inc.,
2200 Pacific Highway,
Mail Zone C-9,
San Diego, CA 92186-5376
Search for other works by this author on:
Nathan Rogers
Propulsion Research Center,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall,
Huntsville, AL 35899;
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall,
Huntsville, AL 35899;
Department of Mechanical and
Aerospace Engineering,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall,
Huntsville, AL 35899
Aerospace Engineering,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall,
Huntsville, AL 35899
Zhong Ren
Propulsion Research Center,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall,
Huntsville, AL 35899;
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall,
Huntsville, AL 35899;
Department of Mechanical and
Aerospace Engineering,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall,
Huntsville, AL 35899
Aerospace Engineering,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall,
Huntsville, AL 35899
Warren Buzzard
Propulsion Research Center,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall,
Huntsville, AL 35899;
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall,
Huntsville, AL 35899;
Department of Mechanical and
Aerospace Engineering,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall,
Huntsville, AL 35899
Aerospace Engineering,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall,
Huntsville, AL 35899
Brian Sweeney
Propulsion Research Center,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall,
Huntsville, AL 35899;
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall,
Huntsville, AL 35899;
Department of Mechanical and
Aerospace Engineering,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall,
Huntsville, AL 35899
Aerospace Engineering,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall,
Huntsville, AL 35899
Nathan Tinker
Propulsion Research Center,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall,
Huntsville, AL 35899;
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall,
Huntsville, AL 35899;
Department of Mechanical and
Aerospace Engineering,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall,
Huntsville, AL 35899
Aerospace Engineering,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall,
Huntsville, AL 35899
Phil Ligrani
Professor
Eminent Scholar
Propulsion Research Center,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall S236,
Huntsville, AL 35899;
Eminent Scholar
Propulsion Research Center,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall S236,
Huntsville, AL 35899;
Department of Mechanical and
Aerospace Engineering,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall S236,
Huntsville, AL 35899
e-mail: pml0006@uah.edu
Aerospace Engineering,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall S236,
Huntsville, AL 35899
e-mail: pml0006@uah.edu
Keith Hollingsworth
Professor
Propulsion Research Center,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall S236,
Huntsville, AL 35899;
Propulsion Research Center,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall S236,
Huntsville, AL 35899;
Department of Mechanical and
Aerospace Engineering,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall S236,
Huntsville, AL 35899
Aerospace Engineering,
University of Alabama in Huntsville,
5000 Technology Drive,
Olin B. King Technology Hall S236,
Huntsville, AL 35899
Fred Liberatore
Combustion Engineering, Solar Turbines, Inc.,
2200 Pacific Highway,
Mail Zone E-4,
San Diego, CA 92186-5376
2200 Pacific Highway,
Mail Zone E-4,
San Diego, CA 92186-5376
Rajeshriben Patel
Combustion Engineering, Solar Turbines, Inc.,
2200 Pacific Highway,
Mail Zone E-4,
San Diego, CA 92186-5376
2200 Pacific Highway,
Mail Zone E-4,
San Diego, CA 92186-5376
Shaun Ho
Combustion Engineering, Solar Turbines, Inc.,
2200 Pacific Highway,
Mail Zone E-4,
San Diego, CA 92186-5376
2200 Pacific Highway,
Mail Zone E-4,
San Diego, CA 92186-5376
Hee-Koo Moon
Aero/Thermal and Heat Transfer,
Solar Turbines, Inc.,
2200 Pacific Highway,
Mail Zone C-9,
San Diego, CA 92186-5376
Solar Turbines, Inc.,
2200 Pacific Highway,
Mail Zone C-9,
San Diego, CA 92186-5376
1Corresponding author.
Contributed by the International Gas Turbine Institute (IGTI) of ASME for publication in the JOURNAL OF TURBOMACHINERY. Manuscript received October 2, 2016; final manuscript received October 31, 2016; published online January 24, 2017. Editor: Kenneth Hall.
J. Turbomach. May 2017, 139(5): 051009 (13 pages)
Published Online: January 24, 2017
Article history
Received:
October 2, 2016
Revised:
October 31, 2016
Citation
Rogers, N., Ren, Z., Buzzard, W., Sweeney, B., Tinker, N., Ligrani, P., Hollingsworth, K., Liberatore, F., Patel, R., Ho, S., and Moon, H. (January 24, 2017). "Effects of Double Wall Cooling Configuration and Conditions on Performance of Full-Coverage Effusion Cooling." ASME. J. Turbomach. May 2017; 139(5): 051009. https://doi.org/10.1115/1.4035277
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