Results 51 to 60 of about 315 (116)

Effect of rotation on film cooling with a single row of shaped holes on blade pressure side

Journal of Thermal Science and Technology, 2017
A numerical investigation is performed to illustrate the mutual interaction between coolant jet issuing from shaped film cooling hole and cascade primary flow as well as the resulting film cooling performance under rotational condition. Four various film-
Xingdan ZHU, Jingzhou ZHANG, Xiaoming TAN, Yong SHAN   +3 more
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Film cooling characteristics of squealer tip of a turbine blade

Xibei Gongye Daxue Xuebao
The high-speed and high-temperature gap leakage flow in the turbine blade tip clearance directly scours the tip of the rotor blade and generates a local high-temperature region, so the active and passive control of the gap leakage flow is very important.
WU Fangfang, XU Weijiang, LIU Cunliang, SHI Jingyin, YU Zeyu   +4 more
doaj   +1 more source

Effect of Film Cooling on Turbine Capacity

Journal of Engineering for Gas Turbines and Power, 2009
This paper describes a method that allows the effect of film cooling on the capacity of a turbine to be computed. The model is based on fundamental cooling performance parameters and is applicable to situations in which a mainstream flow is displaced by a partially mixed film cooling layer.
openaire   +2 more sources

The film cooling performance of spiral-channel holes on turbine guide vane

Case Studies in Thermal Engineering
A spiral-channel hole is implemented to heighten the cooling performance of turbine vanes by inducing swirling flow. Numerical simulations examine and compare the film effectiveness and flow structure at four positions.
Yuhao Jia, Yongbao Liu, Zewei Meng, Xing He, Yang Liu   +4 more
doaj   +1 more source

Cooling Performance of Impingement–Effusion Double-Wall Configurations Under Atmospheric and Elevated Pressures

Applied Sciences
The combustor liner of the modern aero-engine operates under extreme thermal loads with limited coolant supply, necessarily making efficient cooling approaches important.
Rongxing Zhang, Wei Li, Jianbai Jiang, Xudong Lang, Jinxin Dai, Tianyou Lian, Xiaoxiang Shi, Wei Li   +7 more
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Computational research on film cooling performance of different shaped holes with backward and forward injection

AIP Advances, 2019
The present work has been performed to evaluate the effect of three shaped holes (cylindrical hole, expansion-shaped hole and fan-shaped hole) with forward injection and backward injection on film cooling effectiveness on the adiabatic wall flat plate ...
Zi-chen Zhao, Li-ming He, Sheng-ji Dai, Shuai Shao   +3 more
doaj   +1 more source

A Transient Method Using Liquid Crystal for Film Cooling Over a Convex surface

International Journal of Rotating Machinery, 2001
In order to explore the effect of blowing ratio on film cooling over a convex surface, the present study adopts the transient liquid crystal thermography for the film cooling measurement on a straight circular hole configuration.
Ping-Hei Chen, Min-Sheng Hung, Pei-Pei Ding   +2 more
doaj   +1 more source

Effect of swirl and hot streak on unsteady thermal performances of film-cooled high pressure turbine rotor

Case Studies in Thermal Engineering
Advanced aero-engines widely employ lean-burn combustors to comply with strict NOx emission regulations. Lean-burn combustor exit condition is characterized with swirl and hot streak (HS).
Shenghui Zhang, Shuiting Ding, Chuankai Liu, Xiaojun Yang, Tian Qiu, Chenyu Gan   +5 more
doaj   +1 more source

Computational Study of Film Cooling Effectiveness for a Comparison of Cylindrical, Square and Triangular Holes of Equal Cross-Sectional Area [PDF]

Mehran University Research Journal of Engineering and Technology, 2010
Film cooling effectiveness is studied computationally for a comparison of circular, square and two types of equilateral triangular holes with an inclination of 30o with streamwise direction.
Fayyaz Hassan Asghar, Muhammad Javed Hyder   +1 more
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SİLİNDİRİK ENJEKSİYON DELİKLERİNDE FİLM SOĞUTMA İNCELEMESİ

Havacılık ve Uzay Teknolojileri Dergisi, 2006
This paper deals with experimental and numerical investigation of the film cooling effectiveness on a flat plate. Eleven injection holes on the model are in a single row. The holes have cylindrical cross section and they are 8.5 mm diameters.
İbrahim Koç
doaj