Results 21 to 30 of about 98,675 (218)
Surrogate-based optimization of a cratered cylindrical hole to enhance film-cooling effectiveness
Journal of Thermal Science and Technology, 2016 A cratered film-cooling hole was investigated to determine the effect of shape parameters on film-cooling performance, and shape of the hole was optimized to improve film-cooling effectiveness.
Jun-Hee KIM, Kwang-Yong KIM
doaj +1 more source
Propulsion and Power Research, 2013 The film cooling mechanism and characteristics of a row of cylindrical holes with branched jet injections were investigated by numerical simulation. Three geometries for the branched jet injection holes and four blowing ratios were considered.
Yu Yao, Jingzhou Zhang, Yang Yang
doaj +1 more source
Computational study of hole shape effect on film cooling performance [PDF]
, 2011 Film cooling effectiveness has been studied by using a computational approach based on solving the Reynolds-averaged Navier–Stokes equations. A wind tunnel test configuration is considered with a total of four cooling hole geometries as a cylindrical ...
Yao, Jun, Yao, Yufeng
core +1 more source
Propulsion and Power Research, 2012 In order to study the effect of cross-flow directions of an internal coolant on film cooling performance, the discharge coefficients and film cooling effectiveness with one inlet and double outlet hole injections were simulated.
Guangchao Li +4 more
doaj +1 more source
Energies, 2021 The forward expansion hole improves the film cooling effectiveness by reducing the penetration of the coolant jet into the main flow compared to the cylindrical holes.
Seung Il Baek, Jaiyoung Ryu, Joon Ahn
doaj +1 more source
Numerical analysis and design optimization on full coverage film-cooling for turbine guided vane
Engineering Applications of Computational Fluid Mechanics, 2022 Based on numerical simulations, the heat transfer and flow field of a turbine vane are analyzed and the film cooling is improved. The optimization objective is increasing the overall cooling effectiveness with cascade pressure loss factors staying almost
Mingrui Wang +5 more
doaj +1 more source
Simulation and experimental study of double holes film cooling [PDF]
, 2012 In the modern gas turbine, film cooling has been widely used to provide thermal protection for the external surface of the gas turbine blades. Numerous number of geometrical arrangement film cooling have been presented for the past 50 years.
Abdul Rahim, Erween +3 more
core +4 more sources
Effects of plasma actuation and hole configuration on film cooling performance
Propulsion and Power Research, 2023 In this paper, plasma actuators are arranged asymmetrically downstream the wall to improve film cooling performance. Effects of blowing ratio, hole configuration and applied voltage on flow characteristics and film cooling effectiveness were investigated
Jie Sun +4 more
doaj +1 more source
Numerical study of effusion cooling on an adiabatic flat plate
Propulsion and Power Research, 2013 The present study aims to investigate the effectiveness of effusion film cooling on an adiabatic flat plate. Cylindrical holes of 30° inclination are used for supplying cold air to the hot primary flow. A non-dimensional parameter called the film cooling
Reaz Hasan, Agin Puthukkudi
doaj +1 more source
Effects of Diffusion Film Hole Exit Area on the Film Cooling Effectiveness
International Journal of Rotating Machinery, 2022 One popular method for the protection of gas turbines’ hot sections from high-temperature combustor gases is film cooling. Substantial amounts of research have been conducted to accomplish this task with the minimum cooling flow, maximum surface coverage,
Fan Yang, Mohammad E. Taslim
doaj +1 more source