.png){kind=icon}
返回
A particle method and adaptive treecode for vortex sheet motion in three-dimensional flow
.png){kind=icon}
OA
AI
DOI：10.1006/jcph.2001.6862.png)
.png){kind=icon}
.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
A particle method is presented for computing vortex sheet motion in three-dimensional flow. The particles representing the sheet are advected by a regularized Biot-Savart integral in which the exact singular kernel is replaced by the Rosenhead-Moore kernel. New particles are inserted to maintain resolution as the sheet rolls up. The particle velocities are evaluated by an adaptive treecode algorithm based on Taylor approximation in Cartesian coordinates, and the necessary Taylor coefficients are computed by a recurrence relation. The adaptive features include a divide-and-conquer evaluation strategy, nonuniform rectangular clusters, variable-order approximation, and a run-time choice between Taylor approximation and direct summation. Tests are performed to document the treecode's accuracy and efficiency. The method is applied to simulate the roll-up of a circular-disk vortex sheet into a vortex ring. Two examples are presented, azimuthal waves on a vortex ring and the merger of two vortex rings. (C) 2001 Academic Press.
Keyword:
particle method
adaptive treecode
vortex sheet
vortex ring
three-dimensional flow
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
3.8
论文数:
1.6W
被引数:
7.4W
机构
暂无机构信息
引用论文
What fluids are given during air ambulance treatment of patients with trauma in the UK, and what might this mean for the future? Results from the RESCUER observational cohort study.png)
BMJ OpenOAAI
BMJ OpenIF0
OAAI分享收藏分享收藏Theoretical and computational aspects of the self-induced motion of three-dimensional vortex sheets
PREAI
分享收藏TRIM29 controls enteric RNA virus-induced intestinal inflammation by targeting NLRP6 and NLRP9b signaling pathwaysTRIM29通过靶向NLRP6和NLRP9b信号通路调控肠道RNA病毒诱导的肠道炎症
IF0
PREAI
分享收藏Machine learning assisted microtextured regions segmentation in a near-α titanium alloy机器学习辅助的近α钛合金微纹理区域分割
PREAI
分享收藏
查看更多内容