低压涡轮气动/声学一体化设计——总体参数优化

推进技术 ›› 2012, Vol. 33 ›› Issue (4): 573-578.

低压涡轮气动/声学一体化设计——总体参数优化

谭洪川,乔渭阳,赵磊,王雷,陈云

西北工业大学动力与能源学院, 陕西西安 710072;西北工业大学动力与能源学院, 陕西西安 710072;西北工业大学动力与能源学院, 陕西西安 710072;中航工业集团沈阳发动机设计研究所, 辽宁沈阳 110015;中航工业集团沈阳发动机设计研究所, 辽宁沈阳 110015

发布日期:2021-08-15
作者简介:谭洪川(1985—),男,硕士生,研究领域为叶轮机气动热力学。 E-mail:tanhgcn@163.com

Aerodynamics/Acoustics Integration Design Method of Low Pressure Turbine—— Overall Parameters Optimization

School of Power and Energy, Northwestern Polytechnical University, Xi’an 710072, China;School of Power and Energy, Northwestern Polytechnical University, Xi’an 710072, China;School of Power and Energy, Northwestern Polytechnical University, Xi’an 710072, China;Shenyang Aeroengine Research Institute, AVIC, Shenyang 110015, China;Shenyang Aeroengine Research Institute, AVIC, Shenyang 110015, China

Published:2021-08-15

摘要/Abstract

摘要： 低压涡轮是航空发动机的重要噪声源之一,同时也是影响发动机单位推力耗油率的重要部件之一。为适应新一代发动机高效、低噪的设计目标,提出了基于传统涡轮设计流程的低压涡轮气动/声学一体化设计思路,并以某一典型民用发动机6级低压涡轮的设计要求为例,对末级功分配、通道外径、涡轮出口马赫数、叶片数目等涡轮总体参数进行了优化探索。结果表明,文中提出的设计思路可以在涡轮设计的总体参数选取阶段对涡轮效率和噪声同时进行有效评估,以便合理地选取涡轮总体参数,是一种可行的高效、低噪涡轮设计方法。 

关键词: 低压涡轮;一体化;总体参数;效率;气动;声学

Abstract: Low pressure turbine is one of the main aircraft engine noise sources, and also an important component that effects the specific fuel consumption. To achieve the goals of high efficiency and low noise level in next generation engine, an integrated aerodynamic-acoustics design method was presented for low pressure turbine based on the traditional design process. A typical civil engine’s 6 stage low pressure turbine was chosen for the research, and the influence of the overall parameters such as final stage work distribution, duct outer radius, exit Mach number, blade number on the efficiency and noise level was discussed in detail. Research shows that the design method can evaluate aerodynamic efficiency and noise level effectively at the overall parameter selection stage of turbine design, and it is a feasible method to design high efficient and low noise turbine. 

Key words: Low pressure turbine; Integration; Overall Parameters; Efficiency; Aerodynamic; Acoustics

谭洪川,乔渭阳,赵磊,王雷,陈云. 低压涡轮气动/声学一体化设计——总体参数优化[J]. 推进技术, 2012, 33(4): 573-578.