双吸平衡式螺杆压缩机整机工作过程的数值模拟(英文)  

A Numerical Simulation of Double-suction Balance Type Screw Compressor Medium Septal Part

作　　者：王小明[1] 田青青[1] 贺忠宇 熊国良[1] 罗嗣骁 万长标[1] 

机构地区：[1]华东交通大学机电工程学院,南昌330013 [2]沈阳铁路局,沈阳110000

出　　处：《机床与液压》2013年第24期67-71,共5页Machine Tool & Hydraulics

基　　金：Technical Personnel Service Firm Action Program of National Science and Technology(SQ2009GJC5005668);Science and Technology Support Program of Jiangxi Province(2010BGB00601);University-industry Cooperation Support program of Jiangxi Education Department(GJJ10005)

摘　　要：通过基于标准的方程湍流模型,采用SIMPLEC算法求解N-S方程,利用CFD嵌入式滑移网格技术对双吸平衡式螺杆压缩机整机工作过程进行非定常数值模拟。对螺杆压缩机从吸气、压缩到排气整个工作过程的压力分布、温度分布、速度分布以及排气座回流、涡流分布情况进行了分析。从而为双吸平衡式螺杆压缩机排气口设计以及优化提供有利的依据。Since medium septal part is the core component of double-suction balance type screw compressor, it plays a key role in the decision of the double-suction balance type screw compressor performances. An unsteady simulation of double-suction screw compressor medium septal part was conducted by using CFD sliding meshing technology and the pressure and temperature distribution are comprehensively discussed. Besides, by the analysis of backflow and eddy distribution of medium septal part under different conditions, the relationships among backflow intensity, pressure ratio and rotor speed of Yang rotor were obtained, which will provide useful foundation information for the design and optimization of double-suction screw compressor medium septal part.

关 键 词：双吸平衡式 螺杆压缩机 非定常 滑移网格 数值模拟 

分 类 号：TB652[一般工业技术—制冷工程]