Results 291 to 300 of about 3,391,667 (362)

Film-Cooling Performance and Heat Transfer over an Inclined Film-Cooled Surface

Journal of Thermophysics and Heat Transfer, 2008
Experiments have been performed to study and obtain the adiabatic wall film-cooling effectiveness and the heat transfer over a film-cooled surface that is made inclined at various angles with respect to a uniform flow. The vertical temperature distribution was measured to infer the flow structure and the rate of mixing of the film jet with the ...
C. S. Yang, C. L. Lin, C. Gau
openaire   +1 more source

Comparative study of double-slope solar still, hemispherical solar still, and tubular solar still using Al2O3/water film cooling: a numerical study and CO2 mitigation analysis

Environmental science and pollution research international, 2022
S. Shoeibi, Seyed Ali Agha Mirjalily, H. Kargarsharifabad, H. Panchal, R. Dhivagar   +4 more
semanticscholar   +1 more source

Investigations on the Film Cooling of Counter-Inclined Film-Hole Row Structures for Turbine Vane Leading Edge

International journal of turbo & jet-engines, 2018
Numerical simulations have been performed on the film cooling characteristics of counter-inclined structures, which have advantage in manufacturing relative to the usually used parallel-inclined film-hole row structure, on a turbine vane leading edge ...
Cun-liang Liu, Dan Zhao, Ying-ni Zhai, Hui-ren Zhu, Yi-Hong He, Zhi-Xiang Zhou   +5 more
semanticscholar   +1 more source

Film Cooling Effectiveness and Heat Transfer of Rectangular-Shaped Film Cooling Holes

Volume 3: Turbo Expo 2002, Parts A and B, 2002
An experimental study has been conducted to measure the local film-cooling effectiveness and the heat transfer coefficient for a single row of rectangular-shaped holes. The holes have a 35° inclination angle with 3 hole diameter spacing of rectangular cross-sections.
Dong Ho Rhee, Youn Seok Lee, Hyung Hee Cho   +2 more
openaire   +1 more source

Filmkühlung (film cooling)

2000
Es handelt sich um eine spezielle Methode zur Kuhlung von Oberflachen (engl.: heat protection), bei der durch diskrete Oberflachenoffnungen ein Fluidfilm zwischen das heise Gas der Ausenstromung und die Wand eingeblasen wird. Es besteht physikalisch eine enge Verwandtschaft zur sog. TranspirationskUhlung.
openaire   +1 more source

Double-Jet Ejection of Cooling Air for Improved Film Cooling

Journal of Turbomachinery, 2006
Film cooling in gas turbines leads to aerodynamic mixing losses and reduced temperatures of the gas flow. Improvements of the gas turbine thermal efficiency can be achieved by reducing the cooling fluid amount and by establishing a more equal distribution of the cooling fluid along the surface.
Karsten Kusterer, Dieter Bohn, Takao Sugimoto, Ryozo Tanaka   +3 more
openaire   +1 more source

Film-Cooling Effectiveness From Shaped Film Cooling Holes for a Gas Turbine Blade

Volume 4: Heat Transfer, Parts A and B, 2008
The effect of film cooling holes placed along the span of a fully-cooled high pressure turbine blade in a stationary, linear cascade on film cooling effectiveness is studied using the Pressure Sensitive Paint (PSP) technique. Six rows of compound angled shaped film cooling holes are provided on the pressure side while four such rows are provided on the
Shantanu Mhetras, Je-Chin Han, Ron Rudolph   +2 more
openaire   +1 more source

Film Cooling Effectiveness for Short Film Cooling Holes Fed by a Narrow Plenum

Journal of Turbomachinery, 1999
The adiabatic, steady-state liquid crystal technique was used to measure surface adiabatic film cooling effectiveness values in the near-hole region X/D<10. A parametric study was conducted for a single row of short holes L/D⩽3 fed by a narrow plenum H/D=1.
C. A. Hale, M. W. Plesniak, S. Ramadhyani   +2 more
openaire   +1 more source

Effects of Curvature on the Film Cooling Effectiveness of Double-Jet Film Cooling

Volume 5B: Heat Transfer, 2014
The effect of curvature on the film cooling characteristics of Double-Jet Film Cooling (DJFC) was numerically investigated using three-dimensional Reynolds-Averaged Navier-Stokes (RANS). The low-Reynolds number shear stress transport (SST) model was employed as the turbulence closure model.
Gaoliang Liao, Xinjun Wang, Jun Li, Feng Zhang   +3 more
openaire   +1 more source

Double-Jet Film-Cooling for Highly Efficient Film-Cooling With Low Blowing Ratios

Volume 4: Heat Transfer, Parts A and B, 2008
Further improvement of the thermal efficiency of modern gas turbines can be achieved by a further reduction of the cooling air amount. Therefore, it is necessary to increase the cooling effectiveness so that the available cooling air fulfils the cooling task even if the amount has been reduced. In particular, the cooling effort for the vanes and blades
Karsten Kusterer, Anas Elyas, Dieter Bohn, Takao Sugimoto, Ryozo Tanaka   +4 more
openaire   +1 more source