Momentum preserving film-cooling shaped holes

Title: 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:: Shih, Tom I-P; Na, Sangkwon

Issue Date:: 2011-08-16

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.

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                    Shih, Tom I-P, & Na, Sangkwon. Momentum preserving film-cooling shaped holes.  United States.

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                    Shih, Tom I-P, and Na, Sangkwon. Tue .  
        "Momentum preserving film-cooling shaped holes".  United States.  https://www.osti.gov/servlets/purl/1531692.

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@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}

}

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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.
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Nita, Kozo; Okita, Yoji; Nakamata, Chiyuki
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Gas turbine engine components with improved film cooling
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Venkataramanan, Jyothishkumar; Muthiah, Gopal Samy; Ramachandran, Dhinagaran
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Articles which include chevron film cooling holes, and related processes
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Bunker, Ronald Scott; Lacy, Benjamin Paul
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Gas turbine engine components with lateral and forward sweep film cooling holes
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Morris, Mark C.; Waldman, David R.; Malak, Malak Fouad
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Similar Records

Title: Momentum preserving film-cooling shaped holes

Abstract

Citation Formats

Pressure regulated film cooling patent, March 1996

Increasing Adiabatic Film-Cooling Effectiveness by Using an Upstream Ramp journal, December 2006

Turbine bucket with optimized cooling circuit patent, April 2007

Turbine airfoil with enhanced cooling patent, September 2010

Method of laser forming a slot patent, May 1998

Cooled turbine blade for a gas turbine patent, April 1997

Gas turbine aerofoil patent, June 2006

Hot gas path component with mesh and impingement cooling patent, February 2007

Film cooling passages with curved corners patent, August 1987

Chevron film cooled wall patent-application, December 2005

Cooled turbine component and cooled turbine blade patent, December 2005

Counter-bored film-cooling holes and related method patent-application, October 2005

Film cooled components patent, February 1991

Coolable thin metal sheet patent, September 1988

Film cooled wall patent, May 1995

Film cooling passages with step diffuser patent, April 1988

Coolant passages for gas turbine components patent, June 2001

Gas turbine rotor blade patent, August 2000

Momentum-Preserving Shaped Holes for Film Cooling conference, March 2009

Film coolant passages for cast hollow airfoils patent, June 1987

Preventing Hot Gas Ingestion by Film-Cooling Jets via Flow-Aligned Blockers conference, September 2008

Hot gas path component with mesh and impingement cooling patent-application, June 2005

Method for improving the cooling effectiveness of a gaseous coolant stream, and related articles of manufacture patent, May 2001

Gas turbine engine components with film cooling holes having cylindrical to multi-lobe configurations patent, May 2017

Hot gas components with compound angled cooling features and methods of manufacture patent, July 2017

Turbine blade patent, September 2017

Gas turbine engine components with improved film cooling patent, September 2013

Hanger system for a turbine engine component patent, October 2018

Combustor assembly for a turbine engine patent, May 2018

Combustor assembly for a turbine engine patent, January 2019

Combustor assembly for a turbine engine patent, February 2019

Articles which include chevron film cooling holes, and related processes patent, December 2014

Turbine engine components patent, February 2013

Gas turbine engine components with cooling hole trenches patent, January 2014

Gas turbine engine components with lateral and forward sweep film cooling holes patent, October 2018

Pressure regulated film cooling
patent, March 1996

Increasing Adiabatic Film-Cooling Effectiveness by Using an Upstream Ramp
journal, December 2006

Turbine bucket with optimized cooling circuit
patent, April 2007

Turbine airfoil with enhanced cooling
patent, September 2010

Method of laser forming a slot
patent, May 1998

Cooled turbine blade for a gas turbine
patent, April 1997

Gas turbine aerofoil
patent, June 2006

Hot gas path component with mesh and impingement cooling
patent, February 2007

Film cooling passages with curved corners
patent, August 1987

Chevron film cooled wall
patent-application, December 2005

Cooled turbine component and cooled turbine blade
patent, December 2005

Counter-bored film-cooling holes and related method
patent-application, October 2005

Film cooled components
patent, February 1991

Coolable thin metal sheet
patent, September 1988

Film cooled wall
patent, May 1995

Film cooling passages with step diffuser
patent, April 1988

Coolant passages for gas turbine components
patent, June 2001

Gas turbine rotor blade
patent, August 2000

Momentum-Preserving Shaped Holes for Film Cooling
conference, March 2009

Film coolant passages for cast hollow airfoils
patent, June 1987

Preventing Hot Gas Ingestion by Film-Cooling Jets via Flow-Aligned Blockers
conference, September 2008

Hot gas path component with mesh and impingement cooling
patent-application, June 2005

Method for improving the cooling effectiveness of a gaseous coolant stream, and related articles of manufacture
patent, May 2001

Gas turbine engine components with film cooling holes having cylindrical to multi-lobe configurations
patent, May 2017

Hot gas components with compound angled cooling features and methods of manufacture
patent, July 2017

Turbine blade
patent, September 2017

Gas turbine engine components with improved film cooling
patent, September 2013

Hanger system for a turbine engine component
patent, October 2018

Combustor assembly for a turbine engine
patent, May 2018

Combustor assembly for a turbine engine
patent, January 2019

Combustor assembly for a turbine engine
patent, February 2019

Articles which include chevron film cooling holes, and related processes
patent, December 2014

Turbine engine components
patent, February 2013

Gas turbine engine components with cooling hole trenches
patent, January 2014

Gas turbine engine components with lateral and forward sweep film cooling holes
patent, October 2018