Knowledge Management System of Institue of Mechanics, CAS
| NUMERICAL STUDY OF BLUFF-BODY FLOW STRUCTURES | |
Ling GC(凌国灿) ; LING, GC (reprint author), CHINESE ACAD SCI,INST MECH,NONLINEAR MECH LAB,BEIJING 100080,PEOPLES R CHINA.
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| 会议录名称 | SADHANA-ACADEMY PROCEEDINGS IN ENGINEERING SCIENCES |
| 1993 | |
| 会议名称 | 5TH ASIAN CONGRESS OF FLUID MECHANICS |
| 会议日期 | AUG 10-14, 1992 |
| 会议地点 | TAEJON, SOUTH KOREA |
| 摘要 | Our recent progress in numerical studies of bluff body flow structures and a new method for the numerical analysis of near wake flow field for high Reynolds number flow are introduced. The paper consists of three parts. In part one, the evolution of wake vortex structure and variation of forces on a flat plate in harmonic oscillatory flows and in in-line steady-harmonic combined flows are presented by an improved discrete vortex method, as the Keulegan-Carpenter number (KC) varies from 2 to 40 and ratios of U-m to U-0 are of O(10(-1)), O(10) and O(10), respectively. In part 2, a domain decomposition hybrid method, combining the finite-difference and vortex methods for numerical simulation of unsteady viscous separated flow around a bluff body, is introduced. By the new method, some high resolution numerical visualization on near wake evolution behind a circular cylinder at Re = 10(2), 10(3) and 3 x 10(3) are shown. In part 3, the mechanism and the dynamic process for the three-dimensional evolution of the Karman vortex and vortex filaments in braid regions as well as the early features of turbulent structure in the wake behind a circular cylinder are presented numerically by the vortex dynamics method. |
| WOS记录号 | WOS:A1993MH82200012 |
| URL | 查看原文 |
| 收录类别 | CPCI-S |
| 语种 | 英语 |
| 引用统计 | |
| 文献类型 | 会议论文 |
| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/59019 |
| 专题 | 力学所知识产出(1956-2008) |
| 通讯作者 | LING, GC (reprint author), CHINESE ACAD SCI,INST MECH,NONLINEAR MECH LAB,BEIJING 100080,PEOPLES R CHINA. |
| 推荐引用方式 GB/T 7714 | Ling GC,LING, GC . NUMERICAL STUDY OF BLUFF-BODY FLOW STRUCTURES[C]SADHANA-ACADEMY PROCEEDINGS IN ENGINEERING SCIENCES,1993. |
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| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| CPCI-B118.pdf（718KB） | 会议论文 | 开放获取 | CC BY-NC-SA | 浏览 下载 | ||
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