Therefore, along with high temperature material development, a sophisticated cooling scheme must be developed for continuous safe operation of gas turbines with high performance. Gas turbine blades are cooled internally and externally. This paper focuses on external blade cooling or so-called film ...
Richards B E,Villc J P and Appels C.Film Cooled Small Turbine Blades Research-Film Cooling Effectiveness at Simulated Turbine Condition.. 1976Richards B E, Villc J P, Appels C. Film cooled small turbine blades research-film cooling effectiveness at simulated turbine condition[R]. VKI TN, 1976...
"Multidisciplinary Design Optimization of Film- Cooled Gas Turbine Blades". Mathematical Problems in Engineering, 5, pp. 97-119.S.S. Talya, J.N. Rajadas, and A. Chattopadhyay, "Multidisciplinary Design Optimization of Film-Cooled Gas Turbine Blades", Proc. National Heat Transfer Conference, ...
An experimental study of film cooling is conducted on the tip of a turbine blade with a blade rotation speed of 1200 rpm. The coolant is injected from the blade tip and pressure side (PS) holes, and the effect of the blowing ratio on the heat transfer coefficient and film cooling effectiv...
The paper presents recent trends in modeling jets in crossflow with relevance to film cooling of turbine blades. The aim is to compare two classes of turbulence models with respect to their predictive performance in reproducing near-wall flow physics and heat transfer The study focuses on anisotropi...
As a basic research on film-cooling of turbine airfoils the experiments of flow visualization of the water model flow was carried out. The flat plate model with a single round ejection hole was used and its flow was visualized by the dye injection and the H2-bubble tracer methods. The horse...
The goal of this study is to quantify the impact of rotor-stator interaction on surface heat transfer of film cooled turbine blades. In Section 1, a steady-state injection model of the film cooling is incorporated into a two-dimensional, thin shear layer, multiblade row CFD code. This injec...
Film cooling is commonly used on the leading edge of turbine blades to protect the blade surface from hot mainstream gases in the turbine. Obtaining detail... Z Gao,LM Wright,JC Han 被引量: 6发表: 2005年 Evaluation of CFD Predictions Using Thermal Field Measurements on a Simulated Film Cool...
Effects of film cooling on the internal heat transfer coefficients of turbine blades were investigated numerically and the key factors have been found out as the film cooling hole distance ratio and the inlet Reynolds number.The local heat transfer coefficient variations were discussed both for the ...
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. Film cooling is widely used in modern high temperature and high pressure blades as an acti...