Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 120
Book Description
Full-coverage Film Cooling on Flat, Isothermal Surfaces: Data and Predictions
Author: An investigation of the heat transfer for full coverage film cooling of a flat plate with normal holes
Author: Grady Blair KellyFull-coverage Film Cooling on Flat, Isothermal Surfaces
Author: Michael E. CrawfordPublisher:
ISBN:
Category : Boundary layer
Languages : en
Pages : 120
Book Description
Heat transfer to a full-coverage film-cooled surface with 30 ̊slant-hole injection
Author: Michael E. CrawfordPublisher:
ISBN:
Category : Boundary layer
Languages : en
Pages : 256
Book Description
Heat transfer behavior was studied in a turbulent boundary layer with full coverage film cooling through an array of discrete holes and with injection 30 deg to the wall surface in the downstream direction. Stanton numbers were measured for a staggered hole pattern with pitch-to-diameter ratios of 5 and 10, an injection mass flux ratio range of 0.1 to 1.3, and a range of Reynolds number Re sub x of 150,000 to 5 million. Air was used as the working fluid, and the mainstream velocity varied from 9.8 to 34.2 m/sec (32 to 112 ft/sec). The data were taken for secondary injection temperature equal to the wall temperature and also equal to the mainstream temperature. The data may be used to obtain Stanton number as a continuous function of the injectant temperature by use of linear superposition theory. The heat transfer coefficient is defined on the basis of a mainstream-to-wall temperature difference. This definition permits direct comparison of performance between film cooling and transpiration cooling. A differential prediction method was developed to predict the film cooling data base. The method utilizes a two-dimensional boundary layer program with routines to model the injection process and turbulence augmentation. The program marches in the streamwise direction, and when a row of holes is encountered, it stops and injects fluid into the boundary layer. The turbulence level is modeled by algebraically augmenting the mixing length, with the augmentation keyed to a penetration distance for the injected fluid.--(NTRL site)
Full-coverage Film Cooling
Author: Stanford University. Thermosciences Division. Thermosciences DivisionPublisher:
ISBN:
Category : Gas-turbines
Languages : en
Pages : 200
Book Description
Full Coverage Film Cooling Heat Transfer Studies: a Summary of the Data for Normal Hole Injection and 30 Degrees Slant Hole Injection
Author: Stanford University. Thermosciences Division. Thermosciences DivisionPublisher:
ISBN:
Category :
Languages : en
Pages : 110
Book Description
Full-coverage Film Cooling Heat Transfer Study
Author: Full-coverage Film Cooling
Author: S. YavuzkurtPublisher:
ISBN:
Category : Boundary layer
Languages : en
Pages : 196
Book Description
Heat Transfer to a Full Coverage Film Cooled Surface with Thirty Degree Slant Hole Injection
Author: Stanford University. Thermosciences Division. Thermosciences DivisionPublisher:
ISBN:
Category :
Languages : en
Pages : 264
Book Description
Adiabatic effectiveness for full coverage film cooling with normal holes on a flat plate
Author: Mark Kenneth HarringtonPublisher:
ISBN:
Category :
Languages : en
Pages : 236
Book Description