Gas turbines are widely used in the areas of air propulsion, electric power generation, ship
propulsion, external driving units, and other industrial applications. Efficient coating and …

In this study, the effects of three trench configurations–the height, the distance from the hole
exit to the downstream sidewall, and the radius of the curvature of the downstream sidewall …

Uncertainty on operating and manufacturing conditions for gas turbines leads to a reduced
knowledge of their behavior along with high risk of unexpected failures. This study presents …

The influence of the shape of the downstream edge of trench film cooling hole outlets on film
cooling effectiveness was investigated using CFD for flat plate film cooling. A 90 deg trench …

Advances in trenched-hole film cooling result in a fact that short-holes exposing in a
transverse trench have a significantly large potential for application in designs of future …

The film cooling performance of cylindrical holes embedded in a transverse trench is
evaluated for various shapes of the trench and blowing ratios, and an optimum geometry for …

While it is well understood that certain nondimensional parameters, such as freestream
Reynolds number and turbulence intensity, must be matched for proper design of film …

The improvement of the thermal efficiency of modern gas turbines can be achieved by
reducing the needed cooling air amount. Consequently it is required to increase the cooling …

In this study, computational simulations were made using ANSYS CFX to predict the
improvements in film cooling performance by using novel upstream steps. These steps are …

The improvement of the thermal efficiency of modern gas turbines can be achieved by
reducing the required cooling air amount. The reduction of the cooling air claims for an …