燃气轮机进气系统性能仿真分析

摘要

进气系统噪声是燃气轮机主要噪声源之一。应用计算流体动力学和声学有限元法分别对燃气轮机进气空气滤清器和进气消声器的流动阻力和消声特性进行计算和分析。研究不同结构参数对进气系统空气动力性能和消声性能的影响，用于指导燃气轮机进气系统的优化设计。%The induction noise is a major noise source of gas turbines. The resistance loss and noise attenuation of the intake air filter and the intake silencer of a gas turbine were analyzed by using the Computational Fluid Dynamics (CFD) method and the Acoustical Finite Element Method (Acoustical FEM). Influence of different parameters of the filter structure on the performance of the air intake system and the silencer was studied. This work may provide a guidance for optimal de-sign for the air intake systems of gas turbines.