摘要
针对实际层流设计与应用中的转捩预测需求,围绕三维边界层转捩中最常出现的横流不稳定性开展了建模和应用研究.结合对横流不稳定性机理的分析,在当地化转捩建模框架的基础上引入了一种适用于任意外形的、基于螺旋度概念的横流转捩建模方法,对其关键建模过程、数学推导和物理合理性等机理层面问题进行了更深入的讨论,并通过转捩标准算例和运输机、战斗机等航空外形应用实例的详细验证计算,全面评估了该模型的横流驻波转捩预测能力,同时结合计算参数设置和网格收敛性分析等给出了若干应用指南.本文工作对于理解横流转捩物理特性、建模思想及开展算例模拟具有参考价值.
According to the transition prediction requirements in practical laminar flow design and application,the modeling and application research are carried out around the most common crossflow instability in three-dimensional boundary-layer transition.Combined with the analysis on the mechanism of crossflow instability and based on the local transition modeling framework,a crossflow transition modeling method that is suitable for arbitrary configuration and based on the concept of helicity is introduced.Several key modeling processes,mathematical derivations,physical rationality and other mechanismlevel issues are discussed in depth.Its prediction ability on crossflow stationary-wave transition is comprehensively evaluated by detailed verification calculations on standard transition cases and application examples about transport and fighter aircraft.Some application guidelines with regards to calculation parameter settings and grid convergence analysis are also given.The present work has reference value for understanding the physical characteristics and modeling ideas of crossflow transition as well as carrying out numerical simulation.
作者
杜一鸣
王猛
庞超
高正红
邱福生
Du Yiming;Wang Meng;Pang Chao;Gao Zhenghong;Qiu Fusheng(College of Aerospace Engineering,Shenyang Aerospace University,Shenyang 110136,China;Aero Science and Technology Key Lab for High Speed and High Reynolds Number Aerodynamics Force Research,AVIC Aerodynamics Research Institute,Shenyang 110034,Chin;School of Aeronautics,Northwestern Polytechnical University,Xi'an 710072,China)
出处
《气动研究与试验》
2023年第2期70-89,共20页
Aerodynamic Research & Experiment
基金
国家自然科学基金(12202284)
江西省飞行器设计与气动仿真重点实验室开放基金课题(EI202280263)
沈阳航空航天大学引进人才科研启动基金(22YB11)
关键词
三维边界层转捩
横流不稳定性
当地化转捩模式
螺旋度
应用指南
three dimensional boundary-layer transition
crossflow instability
local transition model
helicity
application guidelines
