[1]江兴贤,**,陈红全.多段翼型无网格算法及其布点技术[J].南京理工大学学报(自然科学版),2005,(01):22-25.
 JIANG Xing-xian,CHEN Hong-quan.Gridless Methods for Multi-element Airfoils and Its Technology of Distrubuting Points[J].Journal of Nanjing University of Science and Technology,2005,(01):22-25.
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多段翼型无网格算法及其布点技术
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
期数:
2005年01期
页码:
22-25
栏目:
出版日期:
2005-02-28

文章信息/Info

Title:
Gridless Methods for Multi-element Airfoils and Its Technology of Distrubuting Points
作者:
江兴贤1 2** 陈红全2
1. 上海汽车工业集团汽车工程研究院, 上海200437;
2. 南京航空航天大学航空宇航学院, 江苏南京210016
Author(s):
JIANG Xing-xian 12 CHEN Hong-quan2
1.Automotive Engineering Academy, Shanghai Automotive Industry Co, Shanghai 200437, China; 2.College of Aerospace Engineering,Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
关键词:
无网格算法 Eu ler方程 点云 多段翼型
Keywords:
grid less methods Eu ler equat ions clouds of po ints mu lt-i e lem ent airfo ils
分类号:
V211.3
摘要:
用显式无网格算法实现了多段翼型的数值模拟。与传统的网格算法不同,求解区域用“点云”离散代替通常的网格划分。基于当地点云离散结构,用二次极小曲面逼近计算空间导数。在研究该算法的基础上,给出了Euler方程无网格离散形式,运用Runge Kutta显式时间推进格式推进求解。此外,还描述了一种区域离散布点方法,研究了点云生成的选点准则,并成功地数值模拟了复杂多段翼型的绕流。
Abstract:
The numerical simulations of the mu lt-i element airfo ils are realized by an exp lic it g rid less method. On ly clouds of points instead of gr ids are d istributed over the computational doma in and the spat ial derivatives o f the Euler equat ions are estimated using a leas-t square curve fit on loca l clouds o f po ints. The paper g ives d iscrete form fo r Euler equat ions on base of g rid less m ethod, and five steps o f Runge-Kutta are adopted fo r time-march ing . In add it ion, the paper describes a conven ient techn ique o f distribu ting po ints and selecting po ints to constitute clouds of po ints. The numerica l resu lts have been obtained for the flow s over complex mult-i element a irfoils using the method presented.

参考文献/References:

[ 1] Do lbow J, Ted B. An introducation to programm ing the m esh less elem ent free ga lerk in m e thod [ J]. A rchives in Com putationa lM echan ics, 1998, 11( 5) : 207- 241.
[ 2] Ba tina J T. A g ridless Euler /Nav ier-Stokes so lution a lgor ithm fo r com plex-a ircraft app lications [ R ] . Reno: AIAA, 1993, 333- 341.
[ 3] M or inish K. A g rid less type so lver for para llel simu la tion of com pressib le flow [ A]. Paralle l Com putationa l F luid Dynam ics, Developm ent and App lications of Para lle l Techno logy [ C] . Ta iw an: E lsevier, 1999. 293- 300.
[ 4] Jam son A, BakerT J, W eatherillN P. Ca lculation of inv isc id transon ic flow ove r a comp le te a ircraft [ J ] . Reno: AIAA, 1986, 103- 110.
[ 5] 黄明恪. 用非结构网格与Eu le r方程计算复杂区域的二维流动[ J]. 计算物理, 1994, 11( 4): 467- 471.

备注/Memo

备注/Memo:
基金项目: 国家自然科学基金( 10372043), 航空科学基金
作者简介: 江兴贤( 1979- ), 男, 工程师, 主要研究方向: 无网格算法, E-m ail: picy674@ hotm ail.com;
通讯联系人: 陈红全, 男, 教授, 博士生导师, E-m ail: hqchenam@ m ail. nuaa. edu. cn。
更新日期/Last Update: 2013-03-03