内流激波边界层干扰非对称特性研究综述
Review on Asymmetry Characteristics of Shock Wave/Boundary Layer Interactions in Internal Flows
孙波 1卓长飞1
作者信息
- 1. 南京理工大学,江苏 南京 210094
- 折叠
摘要
当内流中(喷管和隔离段)出现激波诱导边界层分离时,可能出现非对称流动现象,即使边界条件是对称的,这一令人费解的现象几十年前便引起研究人员的注意,然而至今对其机理仍未完全揭示.本文对国内外过膨胀喷管和隔离段内非对称激波边界层干扰流动的相关研究进行了综述,总结了非对称流动的典型现象、特征和模式,对近期提出的流动偏转角混合层卷吸模型进行了介绍.
Abstract
When boundary layer separation occurs in the internal flow(nozzles and isolators),asymmetric flow phenomena may occur,even if the boundary conditions are symmetric.This puzzling phenomenon attracted the attention of researchers decades ago,but its mechanism has not yet been fully revealed.This paper provides a review of relevant research on the flow of asymmetric shock/boundary layers in over-expanding nozzles and isolaters both domestically and internationally.It summarizes the typical phenomena,characteristics,and modes of asymmetric flow,and introduces the recently proposed flow deflection angle model based on mixed layer entrainment.
关键词
激波边界层干扰/非对称/喷管/激波串/边界层分离/Coanda效应Key words
SBL1/asymmetry/nozzle/shock train/boundary layer separation/Coanda effect引用本文复制引用
出版年
2024
NETL
NSTL
万方数据