Momentum preserving film-cooling shaped holes
Abstract
A system for cooling includes a surface to be cooled and at least one film-cooling hole within the surface for allowing a film cooling jet of coolant to reach the surface, each of the at least one film-cooling hole having a diameter. The at least one film-cooling hole is shaped to preserve momentum of the coolant and assist in preventing entrainment of the hot gases. A method of cooling a surface proximate hot gas includes providing coolant through a w-shaped film-cooling hole to form a cool film between the hot gas and the surface and preserving momentum of the coolant using the w-shaped film-cooling hole to assist in preventing entrainment of the hot gases.
- Inventors:
- Issue Date:
- Research Org.:
- Iowa State Univ., Ames, IA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1531692
- Patent Number(s):
- 7,997,867
- Application Number:
- 11/975,064
- Assignee:
- Iowa State University Research Foundation, Inc. (Ames, IA)
- DOE Contract Number:
- FC26-02NT41431
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2007-10-17
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Shih, Tom I-P, and Na, Sangkwon. Momentum preserving film-cooling shaped holes. United States: N. p., 2011.
Web.
Shih, Tom I-P, & Na, Sangkwon. Momentum preserving film-cooling shaped holes. United States.
Shih, Tom I-P, and Na, Sangkwon. Tue .
"Momentum preserving film-cooling shaped holes". United States. https://www.osti.gov/servlets/purl/1531692.
@article{osti_1531692,
title = {Momentum preserving film-cooling shaped holes},
author = {Shih, Tom I-P and Na, Sangkwon},
abstractNote = {A system for cooling includes a surface to be cooled and at least one film-cooling hole within the surface for allowing a film cooling jet of coolant to reach the surface, each of the at least one film-cooling hole having a diameter. The at least one film-cooling hole is shaped to preserve momentum of the coolant and assist in preventing entrainment of the hot gases. A method of cooling a surface proximate hot gas includes providing coolant through a w-shaped film-cooling hole to form a cool film between the hot gas and the surface and preserving momentum of the coolant using the w-shaped film-cooling hole to assist in preventing entrainment of the hot gases.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2011},
month = {8}
}
Works referenced in this record:
Increasing Adiabatic Film-Cooling Effectiveness by Using an Upstream Ramp
journal, December 2006
- Na, Sangkwon; Shih, Tom I-P.
- Journal of Heat Transfer, Vol. 129, Issue 4
Turbine bucket with optimized cooling circuit
patent, April 2007
- Muriithi, Kahwai G.
- US Patent Document 7,207,775
Turbine airfoil with enhanced cooling
patent, September 2010
- Liang, George
- US Patent Document 7,789,625
Method of laser forming a slot
patent, May 1998
- Rockstroh, Todd; Crow, John M.; Lee, Ching-Pang
- US Patent Document 5,747,769
Cooled turbine blade for a gas turbine
patent, April 1997
- Ohtomo, Fumio; Fukuyama, Yoshitaka; Nakata, Yuji
- US Patent Document 5,624,231
Gas turbine aerofoil
patent, June 2006
- Self, Kevin P.; Bennett, Paul N.
- US Patent Document 7,056,093
Hot gas path component with mesh and impingement cooling
patent, February 2007
- Bunker, Ronald Scott; Lee, Ching-Pang
- US Patent Document 7,182,576
Film cooling passages with curved corners
patent, August 1987
- Field, Robert E.
- US Patent Document 4,684,323
Chevron film cooled wall
patent-application, December 2005
- Lee, Ching-Pang; Brassfield, Steven Robert; Bunker, Ronald Scott
- US Patent Application 10/874900; 20050286998
Cooled turbine component and cooled turbine blade
patent, December 2005
- Nakamata, Chiyuki; Okita, Yoji
- US Patent Document 6,979,176
Counter-bored film-cooling holes and related method
patent-application, October 2005
- Zhang, Xiuzhang Ja,es; Duer, Mark Gerard; Lewis, Doyle Clyde
- US Patent Application 10/813131; 20050220618
Film cooled components
patent, February 1991
- Stroud, David; Corfe, Arthur G.; Towill, Jonathan P.
- US Patent Document 4,992,025
Coolable thin metal sheet
patent, September 1988
- Auxier, Thomas A.; Stalker, Kenneth W.; Zimmerman, Anthony M.
- US Patent Document 4,773,593
Film cooling passages with step diffuser
patent, April 1988
- Field, Robert E.
- US Patent Document 4,738,588
Coolant passages for gas turbine components
patent, June 2001
- Lock, Gary D.; Oldfield, Martin G.
- US Patent Document 6,241,468
Gas turbine rotor blade
patent, August 2000
- Fukue, Ichiro; Akita, Eiji; Suenaga, Kiyoshi
- US Patent Document 6,099,253
Momentum-Preserving Shaped Holes for Film Cooling
conference, March 2009
- Shih, T. I. -P.; Na, S.
- ASME Turbo Expo 2007: Power for Land, Sea, and Air, Volume 4: Turbo Expo 2007, Parts A and B
Film coolant passages for cast hollow airfoils
patent, June 1987
- Auxier, Thomas A.; Field, Robert E.
- US Patent Document 4,676,719
Preventing Hot Gas Ingestion by Film-Cooling Jets via Flow-Aligned Blockers
conference, September 2008
- Shih, T. I. -P.; Na, S.; Chyu, M.
- ASME Turbo Expo 2006: Power for Land, Sea, and Air, Volume 3: Heat Transfer, Parts A and B
Hot gas path component with mesh and impingement cooling
patent-application, June 2005
- Bunker, Ronald Scott; Lee, Ching-Pang
- US Patent Application 10/881506; 20050118023
Method for improving the cooling effectiveness of a gaseous coolant stream, and related articles of manufacture
patent, May 2001
- Bunker, Ronald Scott; Bailey, Jeremy Clyde; Lee, Ching-Pang
- US Patent Document 6,234,755
Works referencing / citing this record:
Gas turbine engine components with film cooling holes having cylindrical to multi-lobe configurations
patent, May 2017
- Malak, Malak Fouad; Rana, Rajiv; Tapia, Luis A.
- US Patent Document 9,650,900
Hot gas components with compound angled cooling features and methods of manufacture
patent, July 2017
- Barr, Brian Chandler; Claretti, Roberto
- US Patent Document 9,708,915
Turbine blade
patent, September 2017
- Nita, Kozo; Okita, Yoji; Nakamata, Chiyuki
- US Patent Document 9,759,069
Gas turbine engine components with improved film cooling
patent, September 2013
- Venkataramanan, Jyothishkumar; Muthiah, Gopal Samy; Ramachandran, Dhinagaran
- US Patent Document 8,529,193
Hanger system for a turbine engine component
patent, October 2018
- Lamusga, Joseph P.; Sippel, Aaron D.; Freeman, Ted J.
- US Patent Document 10,100,659
Combustor assembly for a turbine engine
patent, May 2018
- Bloom, Nicholas John; Kirtley, Daniel; Kahn, Adam Robert
- US Patent Document 9,976,746
Combustor assembly for a turbine engine
patent, January 2019
- Bloom, Nicholas John; Stieg, Michael Alan; Towle, Brian Christopher
- US Patent Document 10,168,051
Combustor assembly for a turbine engine
patent, February 2019
- Bloom, Nicholas John; Kirtley, Daniel; Stieg, Michael Alan
- US Patent Document 10,197,278
Articles which include chevron film cooling holes, and related processes
patent, December 2014
- Bunker, Ronald Scott; Lacy, Benjamin Paul
- US Patent Document 8,905,713
Turbine engine components
patent, February 2013
- Ramachandran, Dhinagaran; Srinivasan, Balamurugan; Muthiah, Gopal Samy
- US Patent Document 8,371,814
Gas turbine engine components with cooling hole trenches
patent, January 2014
- Ramachandran, Dhinagaran; Muthiah, Gopal Samy; Venkataramanan, Jyothishkumar
- US Patent Document 8,628,293
Gas turbine engine components with lateral and forward sweep film cooling holes
patent, October 2018
- Morris, Mark C.; Waldman, David R.; Malak, Malak Fouad
- US Patent Document 10,113,433