|
|
|
|
|
Michael van de Noort and Peter T. Ireland
Double-Wall Effusion Cooling schemes present an opportunity for aeroengine designers to achieve high overall cooling effectiveness and convective cooling efficiency in High-Pressure Turbine blades with reduced coolant usage compared to conventional cooli...
ver más
|
|
|
|
|
|
|
|
|
|
|
Sanjay Nambiar, Anan Ashrabi Ananno, Herman Titus, Anton Wiberg and Mehdi Tarkian
In the quest to enhance the efficiency of gas turbines, there is a growing demand for innovative solutions to optimize high-pressure turbine blade cooling. However, the traditional methods for achieving this optimization are known for their complexity an...
ver más
|
|
|
|
|
|
|
|
|
|
|
Mario Carta, Tiziano Ghisu and Shahrokh Shahpar
Due to the increasingly high turbine inlet temperatures, heat transfer analysis is now, more than ever, a vital part of the design and optimization of high-pressure turbine rotor blades of a modern jet engine. The present study aimed to find out how shap...
ver más
|
|
|
|
|
|
|
|
|
|
|
Filippo Merli, Nicolas Krajnc, Asim Hafizovic and Emil Göttlich
The efficiency assessment of a high-pressure turbine (HPT) stage is complicated by the presence of upstream and downstream purge flows. In fact, the efficiency calculation is often based on mass flow-averaged values of total temperature at the stage inle...
ver más
|
|
|
|
|
|
|
|
|
|
|
Filippo Merli, Nicolas Krajnc, Asim Hafizovic, Marios Patinios and Emil Göttlich
The purpose of the paper is to characterize the aerodynamic behavior of a rotor-downstream hub cavity rim seal in a high-pressure turbine (HPT) stage. The experimental data are acquired in the Transonic Test Turbine Facility at the Graz University of Tec...
ver más
|
|
|
|
|
|
|
|
|
|
|
Xiaojun Yang, Hongming Cai, Jinhui Kang, Wenbo Liu and Peiran Li
In modern civil aeroengines, the hot streak and swirl at the exit of the combustor have a significant impact on the aerothermal performance of the high-pressure turbine (HPT). Due to the different design purposes of the combustor and the turbine, hot str...
ver más
|
|
|
|
|
|
|
|
|
|
|
José Galindo, Andrés Tiseira, Roberto Navarro, Lukas Benjamin Inhestern and Juan David Echavarría
The flow through the stator vanes of a variable geometry turbocharger turbine can reach supersonic conditions and generates a shock wave on the stator vanes, which has a potential impact on the flow loss as well as on unsteady aerodynamic interaction. Th...
ver más
|
|
|
|
|
|
|
|
|
|
|
Gaiya Feng, Jiongran Wen and Chengwei Fei
To achieve the low-cycle fatigue (LCF) lifetime prediction and reliability estimation of turbine blisks, a Marine Predators Algorithm (MPA)-based Kriging (MPA-Kriging) method is developed by introducing the MPA into the Kriging model. To obtain the optim...
ver más
|
|
|
|
|
|
|
|
|
|
|
Jiahao Lu, Wei Yan, Ran Tao, Zhengwei Wang and Di Zhu
As a core component of pumped storage power plants for hydro and marine power storage, this paper investigates the mechanism of pressure pulsation fluctuations under different load conditions to improve the efficiency and operational stability of the sto...
ver más
|
|
|
|
|
|
|
|
|
|
|
Yifan Wang, Kun Jin, Xingxing Huang, Peng Lin, Zhengwei Wang, Wenliang Wang and Lingjiu Zhou
In this paper, a 1000 MW Francis turbine was used to study the influences of uneven clearance distribution caused by various radial installation deviations on the hydraulic thrust of a runner under the rated operating condition with steady-state CFD anal...
ver más
|
|
|
|
|
|