This paper presents an optimization of a high pressure turbine by constructing non-axisymmetric endwalls to the stator row and the rotor hub. The optimization was quantified by using optimization algorithms based on the multi-objective function. The objective was to increase total-to-total efficiency...
1.Experimental investigation on flowfields of non-axisymmetric endwall of annular cascades in multi condition;变工况下非轴对称端壁环形叶栅流场特性实验 2.Based on non-uniform rational B-spline surface technique,the parameterized geometry profiling of non-axisymmetric endwall for turbine cascades was ach...
Thedesignbuildsonpreviousworkon non-axisymmetric profiled endwalls bycombiningthem withthree-dimensionalbladedesign. 本设计建立在先前非轴对称成型端壁的工作基础上,结合了三维叶片的设计 zhidao.baidu.com 6. Non-AxisymmetricTurbineEndWallProfilingandNumericalInvestigationofItsEffectonthe TurbineCascadeLoss ...
Based on non-uniform rational B-spline surface technique,the parameterized geometry profiling of non-axisymmetric endwall for turbine cascades was achieved in this paper. 本文应用非均匀有理B样条曲面技术实现了透平叶栅非轴对称端壁的参数化几何造型,并且以iSIGHT~(TM)商业软件为优化设计平台,结合NUMECA软件...
In this way an improved understanding of the effects of end wall profiling has been obtained. The experimental results generally agree with the design predictions, showing a reduction in the strength of the secondary flow at the exit and a more uniform flow angle profile. In a turbine stage ...
5.Investigation of Aerodynamic Design Method for Last Stage Blade of Turbine and Non-axisymmetric Endwall Profiling Technology;末级涡轮气动设计方法及非轴对称端壁造型技术研究 6.Improvement of Bearing Bush Fixture in Accessory Gearbox for a Typical Engine某型发动机附件机匣轴承衬套固定结构的改进 ...
The time-resolved flowfield is measured in the passage of a linear turbine cascade to show the effects of endwall film cooling and non-axisymmetric endwall contouring on the passage secondary flows...doi:10.1007/s00348-015-2093-5Mensch, Amy E.Mechanical...
Gas turbine engines are very critical equipment for both power generation and energy generation [1,2]. Thus, it is essential to improve the efficiency of their thermal circles and the durability of the components [3,4]. The secondary flow loss near the turbine endwall can be up to more ...
Non-axisymmetric endwall profile optimization was conducted for the nozzle hub and shroud of a 1-stage high-pressure transonic turbine. The endwalls of the hub and the shroud were individually optimized using an approximation model. Kriging model was used for response surface generation and the ...
turbineoptimizationnon-axisymmetric end-wall profilingsecondary flowsThis paper presents a numerical study on the potential aerodynamic benefits of using nonaxisymmetric end walls in one high pressure (HP) turbine, in particular the stator row, and aims to find the global optimum for the design space...