转/静干扰效应纳入设计体系的途径探索

1前言近年来，叶轮机非定常流动时间精确模拟获得十足发展。虽然如此，关于时间精确解仍然存在很多问题。因而就目前而言，将叶轮机非定常干扰时间平均效应纳入设计体系，实现准四维设计体系是缩短我国和发达国家叶轮机气动设计水平差异的关键工作，其中叶轮机非定常流动时均流动模拟方法是首要解决的问题。叶轮机时均流动模拟工作，国外主要有Adamczyk［llRhie［‘］国内作者和孟庆国博士也开展了研究［‘－’］，其中文献问详细阐述了时均流动模拟理论和方法，并对时均流动模拟基本方式进行分类（图1）。2反映转／静干扰效应的时均N－S…

EXPLORATION ON THE WAXS TO INCLUDE ROTOR/STATOR INTERACTION EFFECTS INTO DESIGN SYSTEM

A model equations, Time-Averaged N-S equations which is suitable for simulation of time-averaged flow in multistage turbomachines, is derived. According to engineering requirements, Time-Averaged N-S equations theory is used to simulate time-averaged flow on two levels. The first level is interface treatment technique, at this stage General Continuous Interface method is presented, following this time-average correlation terms are modeled with semi-experimental method put forward by the author, and included into computations. A two-stage fan and A one-stage fan flow-field are computed with these two method respectively. Results show that simulations are more near reality under Time-Averaged flow theory.So it is very necessary to include Time-Averaged flow simulation into turbomachinery design system, mainly Rotor/Stator interaction time-average effects must be embedded in the Time-Averaged flow simulations.