Results 11 to 20 of about 4,477,602 (248)

Turbine cooling and heat transfer modelling for gas turbine performance simulation [PDF]

open access: yes, 2015
The successful design of cooling systems for gas turbine engines is a key factor to feasibility of new projects, as the trend for increasing turbine entry temperatures implies requirements for more sophisticated cooling methods.
Apostolidis, Asteris
core   +7 more sources

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

open access: yesEntropy (Basel), 2023
Film cooling as applied to rocket nozzles is analyzed numerically with emphasis on the assessment of the effect of the mixing of coolant with the hot stream.
Somasekharan N   +5 more
europepmc   +2 more sources

Local Heat Transfer Measurements on a Rotating Flat Blade Model with a Single Film Hole [PDF]

open access: yes, 2009
An experimental study was performed to measure the heat transfer coefficient distributions on a flat blade model under rotating operating conditions. A steady-state thermochromic liquid crystal technique was employed to measure the surface temperature ...
Tao, Zhi   +8 more
core   +1 more source

Determination of Film Cooling Effectiveness and Heat Transfer Coefficient Simultaneously on a Flat Plate

open access: yesEnergies, 2022
In this paper, flat plate film cooling with two rows of compound angle cylindrical film cooling holes was investigated. A data processing method was evaluated which could determine the film cooling effectiveness and heat transfer coefficient ...
Mingjie Zhang
doaj   +1 more source

EFFECTS OF INTERNAL COOLANT CROSSFLOW ON FILM-COOLING PERFORMANCE OF DOUBLE-JET AND CYLINDRICAL HOLES

open access: yes, 2022
In this paper, the effects of internal coolant crossflow on double-jet holes were simulated and compared with two rows of cylindrical holes under three blowing ratios (M = 0.5, 1.0, and 1.5), with an established and validated turbulence model.
Xie, Gongnan,   +4 more
core   +1 more source

Effect of main stream turbulence on the film cooling effectiveness of a circular and a fan-shaped film cooling hole

open access: yesMechanical Engineering Journal, 2020
The reliability of turbine blades and vanes of modern high temperature gas turbines is assured by turbine blade cooling technologies. Among the various cooling methods, film cooling has been a key technology to ensure the long-term operation of turbine ...
Kenichiro TAKEISHI   +3 more
doaj   +1 more source

Convective and Film Cooled Nozzle Extension for a High Pressure Rocket Subscale Combustion Chamber [PDF]

open access: yes, 2010
Experimental investigations have been carried out to study heat transfer, flow separation, and side loads in a subscale nozzle extension. A Vulcain 2-like nozzle geometry has been tested with combustion chamber pressures up to 13 MPa. A new manufacturing
Richard Arnold   +5 more
core   +1 more source

Effects of Turbulence Promoters of Gas Turbine Blades on Film Cooling Performance

open access: yesJournal of Thermal Science and Technology, 2012
The effects of orientation of turbulence promoting ribs in the internal cooling air passage on the film cooling performance of outer surface of gas turbine blades have been studied experimentally.
Yukiko AGATA   +3 more
doaj   +1 more source

Experimental investigation of film cooling effectiveness on gas turbine blades [PDF]

open access: yes, 2009
The hot gas temperature in gas turbine engines is far above the permissible metal temperatures. Advanced cooling technologies must be applied to cool the blades, so they can withstand the extreme conditions.
Gao, Zhihong
core   +3 more sources

Experimental Investigation on the Effects of DBD Plasma on the Film Cooling Effectiveness of a 30-Degree Slot

open access: yesApplied Sciences, 2017
The effects of dielectric barrier discharge (DBD) plasma on the film cooling effectiveness of a 30-degree slot was experimentally investigated in a low-speed wind tunnel.
Ye Jee Kim   +3 more
doaj   +1 more source

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