优化非轴对称端壁二次流性能马蹄涡涡轮作为现代航空燃气涡轮发动机的核心部件,其性能的提升对发动机整机性能有至关重要的影响,因此发展高负荷,高效率的燃气涡轮气动设计技术至关重要.然而燃气涡轮内部流场具有极强的复杂性,而高性能涡轮的研制又要求其级数更少,叶片负荷更高等目标进一步加剧了涡轮内部流场的复杂程度.因此...
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 ...
Nonaxisymmetric Turbine End Wall Design: Part I— Three-Dimensional Linear Design System A linear design system, already in use for the forward and inverse design of three-dimensional turbine aerofoils, has been extended for the design of their... NW Harvey,MG Rose,MD Taylor,... - 《...
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...
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 turbineheat transferpassage vortexnonaxisymmetric endwallDue to the large bending of turbine blades, there is strong three-dimensional flow in cascade channel, the three-dimensional flow at the endwall of blades generates extremely complex heat transfer characteristics. The design concept of high ...
(response).Optimization of non-axisymmetric endwall contouring in a compressor cascade has been performed and evaluated.The design objective was to minimize the total pressure loss.The experiments results show that the optimal CEW cascade is found to suppress the migration of the low momentum fluid...
The GSA process on the non-axisymmetric contoured endwall problem is carried out on the hub of an annular cascade passage adapted from an F-class NGV passage. The turbine inlet temperature is 1673 K in a 60 MW gas turbine. The shroud of the passage is kept as not contoured. The CFD da...