基于流固耦合的压缩机吸气阀组气动噪声研究
Investigation on aerodynamic noise of suction valve group in compressor with fluid-structure interaction modeling
孟凡森 1张小正1
作者信息
- 1. 合肥工业大学噪声振动工程研究所,安徽合肥 230009
- 折叠
摘要
往复式压缩机吸气阀组工作过程存在明显的流固耦合现象,现有的固定阀片开度的数值仿真模型大多没有考虑流固耦合现象,而考虑流固耦合现象的数值仿真模型由于忽略了活塞和阀板的作用难以获取足够的声源信息.文章建立考虑活塞和阀板作用的流固耦合数值仿真模型,并与其他模型获得的运动、流场和声场特性进行对比,结果表明:所建立的流固耦合模型能够更准确地描述吸气阀组的工作过程,获得更丰富的声源信息;基于该流固耦合数值仿真模型开展通流截面参数对吸气阀组气动噪声的影响分析,并优化设计了截面参数.
Abstract
There is an obvious phenomenon of fluid-structure interaction in the operating procedure of suction valve group of reciprocating compressor,but the phenomenon of fluid-structure interaction is frequently ig-nored in the existing numerical simulation model of fixed valve opening.The numerical simulation model con-sidering fluid-structure interaction phenomenon is difficult to obtain sufficient sound source information due to neglecting the influence of piston and valve plate.In this paper,a numerical simulation model of fluid-struc-ture interaction which involves the influence of piston and valve plate is established to investigate the aerody-namic noise characteristics of the suction valve group,and the motion,flow field and acoustic field characteris-tics obtained by the model are compared with those by other models.The numerical results show that the flu-id-structure interaction model can describe accurately the working process of the suction valve group and ob-tain more abundant sound source information.Additionally,the influence of flow section parameters on the aerodynamic noise of suction valve group is analyzed and the section parameters are optimized based on the es-tablished numerical simulation model of fluid-structure interaction.
关键词
往复式压缩机/吸气阀组/流固耦合/气动噪声/数值模拟Key words
reciprocating compressor/suction valve group/fluid-structure interaction/aerodynamic noise/numerical simulation引用本文复制引用
基金项目
国家自然科学基金资助项目(51875147)
出版年
2024
NETL
NSTL
维普
万方数据