Effect of pulsating injection and mainstream attack angle on film cooling performance of a gas turbine blade

SM Hosseini Baghdad Abadi, S Zirak… - Physics of …, 2020 - pubs.aip.org
Relatively few studies have examined the effects of pulsating unsteadiness in turbine
cooling blades. This unsteadiness can be a result of compressor blades and vane …

Mesh sensitivity of RANS simulations on film cooling flow

Y Jiang, A Murray, L di Mare, P Ireland - … Journal of Heat and Mass Transfer, 2022 - Elsevier
Accurate prediction of film cooling flow is a necessity in the design of high-pressure turbine
components given the temperature of hot gas exceeds the melting point of the component …

Numerical investigation on the effects of the divided steps on film cooling performance

D Zheng, X Wang, F Zhang, Q Yuan - Applied Thermal Engineering, 2017 - Elsevier
Described in this paper is a numerical investigation on the concept for enhancing the film
cooling performance by placing divided steps upstream the film cooling hole. Five different …

Film cooling effectiveness measurements of a near surface streamwise diffusion hole

BT An, JJ Liu, XD Zhang, SJ Zhou, C Zhang - International Journal of Heat …, 2016 - Elsevier
This paper presents an experimental investigation on a new configuration of film cooling
hole, namely the near surface streamwise diffusion (NSSD) hole. A discrete streamwise …

Numerical assessment of the film cooling through novel sister-shaped single-hole schemes

S Khajehhasani, BA Jubran - Numerical Heat Transfer, Part A …, 2015 - Taylor & Francis
In the present paper, a numerical investigation is conducted on film cooling performance
from novel sister-shaped single-hole schemes. Based on the sister hole film cooling …

Genetic algorithm optimization of film cooling effectiveness over a rotating blade

A Moeini, MR Zargarabadi - International Journal of Thermal Sciences, 2018 - Elsevier
Shape optimization of a laterally diffused hole has been performed to enhance the film
cooling effectiveness under rotating conditions. The blade rotates at three different speeds of …

Direct numerical simulation of the 7-7-7 film cooling at a range of compound angles

Y Bin, XIA Yang - International Journal of Heat and Mass Transfer, 2024 - Elsevier
Film cooling is essential for protecting substrate materials from the hot gases in
turbomachines. Recent experiments have explored the effects of compound angles for the 7 …

Film cooling from novel sister shaped single-holes

S Khajehhasani, B Jubran - … Expo: Power for …, 2014 - asmedigitalcollection.asme.org
A numerical investigation of the film cooling performance from novel sister shaped single-
holes (SSSH) is presented in this paper and the obtained results are compared with a single …

Design for additive manufacturing: Valves without moving parts

A Gaymann, F Montomoli… - … Expo: Power for …, 2017 - asmedigitalcollection.asme.org
This work presents an innovative design method to obtain valves without moving parts that
can be built using additive manufacturing and applied to gas turbines. Additive …

Improvement of film cooling effectiveness on a flat surface subjected to streamwise pressure gradient by using ramp

AÜ Tepe - International Journal of Thermal Sciences, 2021 - Elsevier
In this study, a numerical study was performed to elucidate the influence of triangular with
concave edge shaped (TCES) ramp on film cooling effectiveness (FCE) and flow …