Results 51 to 60 of about 98,675 (218)

Comparison of cooling effectiveness of turbine vanes with and without film cooling [PDF]

The cooling effectiveness of three film-cooled vanes were compared to the cooling effectiveness of two non-film-cooled vanes. The comparison indicated that, for the vane configurations and test conditions examined, film cooling had an adverse effect near
Gauntner, D. J., Gauntner, J. W., Gladden, H. J., Yeh, F. C.   +3 more
core   +1 more source

Film cooling on the pressure surface of a turbine vane [PDF]

Film-cooling-air ejection from the pressure surface of a turbine vane was investigated, and experimental data are presented. This investigation was conducted in a four-vane cascade on a J75-size turbine vane that had a double row of staggered holes in ...
Gauntner, J. W., Gladden, H. J.
core   +1 more source

Numerical investigation of rectangular twisted hole on film cooling for gas turbine blades [PDF]

, 2014
This paper investigates a new method of film cooling using swirling coolant flow through a rectangular twisted film cooling holes with spirally corrugated tube. Two different air flows with different in temperatures were used in this study.
Fakhir, Ammar, Kareem, Zaid Sattar, Mat Lazim, Tholudin, Saat, Aminuddin   +3 more
core  

Effects of film hole spanwise angle and diameter on flow and heat transfer of impingement/effusion cooling with crossflow diverters

Case Studies in Thermal Engineering
This paper studies the blade cooling under the co-effect of external film extraction and internal impingement cooling with crossflow diverters. The influence of spanwise angle (α) and diameter (Df) of film hole on flow and cooling performance are ...
Juan He, Kun Xiao, Haolong Li, Qinghua Deng, Hao Peng   +4 more
doaj   +1 more source

Combustion effects on film cooling [PDF]

The effects of: (1) a reactive environment on film cooling effectiveness, and (2) film cooling on rocket engine performance were determined experimentally in a rocket thrust chamber assembly operating with hydrogen and oxygen propellants at 300 psi ...
Ewen, R. L., Rousar, D. C.
core   +1 more source

Long Hole Film Cooling Dataset for CFD Development - Flow and Film Effectiveness [PDF]

An experiment investigating flow and heat transfer of long (length to diameter ratio of 18) cylindrical film cooling holes has been completed. In this paper, the thermal field in the flow and on the surface of the film cooled flat plate is presented for ...
Baldauf S., A., Bons J.P., Ekkad S. v., Fasel H.F., Fujimoto S., Han J.C., Hunt J.C.R., Johnson B., Liu, Lutum E., Papell S.S., Peet S.K., Rallabandi A.P., Shih T.-H., Sinha A.K., Spalart P.R., Thurman D.G., Tyagi M., Wilcox D. C.   +18 more
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The removal of thermally aged films of triacylglycerides by surfactant solutions [PDF]

, 2013
Thermal ageing of triacylglycerides (TAG) at high temperatures produces films which resist removal using aqueous surfactant solutions. We used a mass loss method to investigate the removal of thermally aged TAG films from hard surfaces using aqueous ...
B-H Chen, B-H Chen, CA Miller, CP Tan, CP Tan, E Choe, EJ Alameda, EJ Alameda, EJ Alameda, EP Kalogianni, JP Guthrie, K Gotoh, KH Raney, M Tsubouchi, OC Johnson, P Mukherjee, Paul D. I. Fletcher, PS Hess, T Hilditch, Timothy S. Dunstan, VW Reid, WJ Muizbelt, WR Lewis   +22 more
core   +1 more source

Experimental Investigation of Adiabatic Film Cooling Effectiveness and Heat Transfer Coefficients over a Gas Turbine Blade Leading Edge Configuration [PDF]

, 2014
Increasing the rotor inlet temperature is one of the key technologies in raising gas turbine engine performance, for which the turbine blades need to be cooled. Film cooling is one of the efficient cooling techniques to cool the hot section components of
Ashok Babu, TP, Felix , J, Giridhar, Babu Y, Raghavan , R   +3 more
core  

Numerical Study of the Effects of Thermal Barrier Coating and Turbulence Intensity on Cooling Performances of a Nozzle Guide Vane

Energies, 2017
This work presents a numerical investigation of the combined effects of thermal barrier coating (TBC) with mainstream turbulence intensity (Tu) on a modified vane of the real film-cooled nozzle guide vane (NGV) reported by Timko (NASA CR-168289). Using a
Prasert Prapamonthon, Huazhao Xu, Wenshuo Yang, Jianhua Wang   +3 more
doaj   +1 more source

Enhancement of Film Cooling Effectiveness in a Supersonic Nozzle. [PDF]

Entropy (Basel), 2023
Somasekharan N, Srikrishnan AR, Kumar HS, Ganesh KP, Mohammad A, Velamati RK.   +5 more
europepmc   +1 more source