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
Analysis of film cooling effectiveness for jet in crossflow with upstream and downstream roughness
Sign Up to like & getrecommendations! Published in 2024 at "Physics of Fluids"
DOI: 10.1063/5.0209707
Abstract: Roughness, in various distributions and on various scales, is widely encountered in turbine modules and has a complex modulating effect on the distribution of film cooling effectiveness. In this study, the fast-response pressure-sensitive paint technique… read more here.
Keywords: cooling effectiveness; downstream roughness; film cooling; roughness ... 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
Numerical study of the effect of periodic wake on film cooling effectiveness on a plate
Sign Up to like & getrecommendations! Published in 2024 at "Thermal Science"
DOI: 10.2298/tsci240914278s
Abstract: The research presented in this paper is devoted to exploring the influence of upstream periodic wake on the film cooling effectiveness on a downstream plate. This investigation is carried out through rigorous numerical simulations utilizing… read more here.
Keywords: cooling effectiveness; film cooling; wake film; wake ... 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