IMECH-IR  > 高温气体动力学国家重点实验室
Viscous/inviscid interacting shear flow theory with inferences and their applications to CFD
Gao Z(高智); Shen YQ(申义庆); Zha GC
Source Publication52nd AIAA Aerospace Sciences Meeting - AIAA Science and Technology Forum and Exposition, SciTech 2014
2014
Conference Name52nd AIAA Aerospace Sciences Meeting - AIAA Science and Technology Forum and Exposition, SciTech 2014
Conference DateJanuary 13, 2014 - January 17, 2014
Conference PlaceNational Harbor, MD, United states
AbstractIn the viscous/inviscid interacting shear flow(ISF) theory, interacting shear perturbed flow(ISPF) theory and interacting shear turbulent flow(ISTF) theory suggested by Gao, the ISF consists of viscous shear layer and neighboring outer inviscid flow, which interact each other. The motion laws, definition and governing equations of the above three flows are described in ISF's optimal coordinates, which is a fitted dividing flow surface orthogonal coordinates. The scaling laws of velocity and length of ISF's viscous layer are deduced the scaling laws imply the strength of viscous/inviscid flow interaction. The scaling laws of velocity and length of both ISPF's viscous perturbed layer and ISTF's viscous turbulent layer are also given. The equations governing ISF are the Parabolized Navier-Stokes(PNS) equations, which can be simplified further on the dividing surface. The resultant equations are defined as dividing flows surface criteria, whose two important special cases are wall-surface criteria for viscous and inviscid flows. The ISF's optimal coordinates and length scaling law are used to design the grid. The small scale structures given by the scaling laws can be used to predict local sudden changes of heat flux etc., which are very important for hypersonic flows. The wall-surface criteria are used to validate NS numerical solutions for ISF and flow near walls. The wall-surface criteria method has several advantages over the commonly used grid convergence criteria. The applications of ISF theory indicates its effectiveness and further studies and development are needed.
KeywordGoverning Equations Interacting Shear Flow Theory Orthogonal Coordinates Parabolized Navier-stokes (Pns) Shear Turbulent Flow Small-scale Structures Viscous/inviscid Interacting Flow Wall-surface Criteria
DepartmentLHD气动布局优化与计算方法
ISBN9781624102561
Indexed ByEI
Language英语
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/60227
Collection高温气体动力学国家重点实验室
Recommended Citation
GB/T 7714
Gao Z,Shen YQ,Zha GC. Viscous/inviscid interacting shear flow theory with inferences and their applications to CFD[C],2014.
Files in This Item: Download All
File Name/Size DocType Version Access License
Cp2014-034.pdf(276KB)会议论文 开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[高智]'s Articles
[申义庆]'s Articles
[Zha GC]'s Articles
Baidu academic
Similar articles in Baidu academic
[高智]'s Articles
[申义庆]'s Articles
[Zha GC]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[高智]'s Articles
[申义庆]'s Articles
[Zha GC]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Cp2014-034.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.