Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 226
Book Description
Experimental data taken from turbine engines has shown that hot streaks exiting combustors can have a significant impact upon the secondary flow and will temperature of the first stage turbine rotor. Understanding the secondary flow and heat transfer effects due to combustor hot streaks is essential to turbine designers attempting to optimize turbine cooling systems. A numerical investigation has been performed which addresses the issues of multi-blade count ratio and three-dimensionality effects on the prediction of combustor hot streak migration in a turbine stage. The two- and three-dimensional Navier-Stokes analyses developed by Rai et al are used to predict unsteady viscous rotor-stator interacting flow in the presence of a combustor hot streak with heat transfer and film cooling. Predicted results are presented for a two-dimensional 3-stator/4-rotor and a three-dimensional 1-stator/1-rotor simulations of streak migration through a turbine stage. Comparison of these results with experimental data demonstrates the capability of the three- dimensional procedure to capture most of the flow physics associated with hot streak migration including the effects of combustor hot streaks on turbine rotor surface temperatures.
Investigation of Hot Streak Migration and Film Cooling Effects on Heat Transfer in Rotor/Stator Interacting Flows. Report 1
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 226
Book Description
Experimental data taken from turbine engines has shown that hot streaks exiting combustors can have a significant impact upon the secondary flow and will temperature of the first stage turbine rotor. Understanding the secondary flow and heat transfer effects due to combustor hot streaks is essential to turbine designers attempting to optimize turbine cooling systems. A numerical investigation has been performed which addresses the issues of multi-blade count ratio and three-dimensionality effects on the prediction of combustor hot streak migration in a turbine stage. The two- and three-dimensional Navier-Stokes analyses developed by Rai et al are used to predict unsteady viscous rotor-stator interacting flow in the presence of a combustor hot streak with heat transfer and film cooling. Predicted results are presented for a two-dimensional 3-stator/4-rotor and a three-dimensional 1-stator/1-rotor simulations of streak migration through a turbine stage. Comparison of these results with experimental data demonstrates the capability of the three- dimensional procedure to capture most of the flow physics associated with hot streak migration including the effects of combustor hot streaks on turbine rotor surface temperatures.
Publisher:
ISBN:
Category :
Languages : en
Pages : 226
Book Description
Experimental data taken from turbine engines has shown that hot streaks exiting combustors can have a significant impact upon the secondary flow and will temperature of the first stage turbine rotor. Understanding the secondary flow and heat transfer effects due to combustor hot streaks is essential to turbine designers attempting to optimize turbine cooling systems. A numerical investigation has been performed which addresses the issues of multi-blade count ratio and three-dimensionality effects on the prediction of combustor hot streak migration in a turbine stage. The two- and three-dimensional Navier-Stokes analyses developed by Rai et al are used to predict unsteady viscous rotor-stator interacting flow in the presence of a combustor hot streak with heat transfer and film cooling. Predicted results are presented for a two-dimensional 3-stator/4-rotor and a three-dimensional 1-stator/1-rotor simulations of streak migration through a turbine stage. Comparison of these results with experimental data demonstrates the capability of the three- dimensional procedure to capture most of the flow physics associated with hot streak migration including the effects of combustor hot streaks on turbine rotor surface temperatures.
Scientific and Technical Aerospace Reports
Technical Reports Awareness Circular : TRAC.
An Experimental Study of the Effect of Wake Passing on Turbine Blade Film Cooling
Author: James D. Heidmann
Publisher:
ISBN:
Category :
Languages : en
Pages : 14
Book Description
Presented at the International Gas Turbine & Aeroengine Congress & Exhibition, Orlando, FL, Jun 2 - Jun 5, 1997.
Publisher:
ISBN:
Category :
Languages : en
Pages : 14
Book Description
Presented at the International Gas Turbine & Aeroengine Congress & Exhibition, Orlando, FL, Jun 2 - Jun 5, 1997.
The Effect of Wake Passing on Turbine Blade Film Cooling
Author: James D. Heidmann
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 272
Book Description
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 272
Book Description
32nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
Aeronautical Engineering: A Cumulative Index to a Continuing Bibliography (supplement 300)
A Numerical Study of the Effect of Wake Passing on Turbine Blade Film Cooling
Aeronautical Engineering
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 648
Book Description
A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA).
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 648
Book Description
A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA).