Improvement on film cooling effectiveness by a combined slot-effusion scheme
Sign Up to like & getrecommendations! Published in 2017 at "Applied Thermal Engineering"
DOI: 10.1016/j.applthermaleng.2017.07.188
Abstract: Abstract Experimental tests are performed in the current study to explore the overall cooling performance of a combined slot injection/effusion array cooling structure. The pure slot injection and pure effusion array cooling schemes are taken… read more here.
Keywords: scheme; effusion; cooling effectiveness; slot ... See more keywords
2-D prediction method for multi-row film cooling effectiveness
Sign Up to like & getrecommendations! Published in 2021 at "Applied Thermal Engineering"
DOI: 10.1016/j.applthermaleng.2021.117607
Abstract: Abstract This work develops a new and effective method to predict the 2-D cooling effectiveness distribution. The assumption in the existing 1-D method is abandoned and replaced by a scalar diffusion equation to model the… read more here.
Keywords: film cooling; row; multi row; cooling effectiveness ... See more keywords
Unsteady 2-D film-cooling effectiveness behind a single row of holes at different blowing ratios: Measurements using fast-response pressure-sensitive paint
Sign Up to like & getrecommendations! Published in 2018 at "International Journal of Heat and Mass Transfer"
DOI: 10.1016/j.ijheatmasstransfer.2017.12.141
Abstract: Abstract An experimental study of film cooling with one row of holes was conducted using fast-response pressure-sensitive paint (fast-PSP) and a high-resolution camera. The film-cooling effectiveness behind a single row of holes was measured for… read more here.
Keywords: film cooling; row holes; cooling effectiveness; blowing ratios ... See more keywords
Effects of simulated swirl purge flow and mid-passage gap leakage on turbine blade platform cooling and suction surface phantom cooling performance
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Heat and Mass Transfer"
DOI: 10.1016/j.ijheatmasstransfer.2018.09.111
Abstract: Abstract Effects of the coolant swirl ratio (SR) and density ratio (DR) of simulated upstream slot purge flow, which is used to simulate the rotation effect, and the mid-passage leakage blowing ratio M on the… read more here.
Keywords: phantom cooling; platform cooling; ratio; cooling effectiveness ... See more keywords
The effect of effusion holes inclination angle on the adiabatic film cooling effectiveness in a three-sector gas turbine combustor rig with a realistic swirling flow
Sign Up to like & getrecommendations! Published in 2017 at "International Journal of Thermal Sciences"
DOI: 10.1016/j.ijthermalsci.2017.07.003
Abstract: Abstract The introduction of Lean Burn concept as basic Low- N O x scheme for future aero-engines is heavily affecting the aero-thermal design of combustors. A great amount of air is admitted through the injection… read more here.
Keywords: film cooling; cooling effectiveness; combustor; film ... See more keywords
Effect of lid height and blowing ratio on film cooling effectiveness of a novel lidded hole configuration
Sign Up to like & getrecommendations! Published in 2022 at "Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering"
DOI: 10.1177/09544089221095665
Abstract: Film cooling is one of the promising technologies used for protecting rocket nozzles and turbine blades from combustion chamber hot gases. This paper proposes a novel shape of film cooling injection hole, called lidded hole,… read more here.
Keywords: lidded hole; cooling effectiveness; hole configuration; film cooling ... See more keywords
Film cooling effectiveness enhancement on wall surface with crater hole and SDBD plasma actuation
Sign Up to like & getrecommendations! Published in 2022 at "Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy"
DOI: 10.1177/09576509221122003
Abstract: At three blowing ratios (M = 0.5, 1, and 1.5), film cooling effectiveness on plain wall surface with designed contoured crater cooling hole was numerically investigated. With variable crater depth (0.4D≤d≤2.7D) and crater expansion angle… read more here.
Keywords: cooling effectiveness; hole; crater; film cooling ... See more keywords
Film-Cooling Effectiveness of Antivortex Holes at Three Different Mainstream Turbulence Levels
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Propulsion and Power"
DOI: 10.2514/1.b36212
Abstract: The effects of mainstream turbulence intensity on the film-cooling effectiveness of antivortex film-cooling holes were experimentally investigated. Four film-cooling hole configurations and three m... read more here.
Keywords: film cooling; mainstream turbulence; cooling effectiveness; effectiveness antivortex ... See more keywords
Cooling Effectiveness of a Data Center Room under Overhead Airflow via Entropy Generation Assessment in Transient Scenarios
Sign Up to like & getrecommendations! Published in 2019 at "Entropy"
DOI: 10.3390/e21010098
Abstract: Forecasting data center cooling demand remains a primary thermal management challenge in an increasingly larger global energy-consuming industry. This paper proposes a dynamic modeling approach to evaluate two different strategies for delivering cold air into… read more here.
Keywords: center room; cooling effectiveness; entropy generation; center ... See more keywords
Enhancement of Film Cooling Effectiveness in a Supersonic Nozzle
Sign Up to like & getrecommendations! Published in 2023 at "Entropy"
DOI: 10.3390/e25030481
Abstract: 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. Cooling performance, as characterized by cooling effectiveness, is… read more here.
Keywords: hot stream; cooling effectiveness; effectiveness; film cooling ... See more keywords