• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Mathematical Problems in Engineering >Adaptive Panel Representation for 3D Vortex Ring Motion and Instability
【24h】

Adaptive Panel Representation for 3D Vortex Ring Motion and Instability

机译：用于3D涡流环运动和不稳定性的自适应面板表示

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A hierarchical panel method for representing vortex sheet surface motion in 3D flow is presented. Unlike previously employed filament methods, each panel is a leaf of the tree, so it can be subdivided locally, which allows an efficient adaptive point insertion. In addition, we developed curvature-based insertion criteria which allow to localize point insertion to the most complicated curved regions of the sheet. The particles representing the sheet are advected by a regularized Biot-Savart integral with Rosenhead-Moore kernel. The particle velocities are evaluated by an adaptive treecode algorithm based on Taylor expansions in Cartesian coordinates due to Lindsay and Krasny (2001). The method allows to consider much later stages of a vortex ring instability, which may shed light on this complicated flow phase directly leading to the turbulent flow.
机译：提出了一种用于表示3D流中涡旋片表面运动的分层面板方法。与以前采用的细丝方法不同，每个面板都是树的叶子，因此可以局部细分，从而可以进行有效的自适应点插入。此外，我们开发了基于曲率的插入准则，该准则允许将点插入定位到图纸中最复杂的弯曲区域。代表薄片的颗粒通过带有Rosenhead-Moore核的正则化Biot-Savart积分平移。通过基于Lindsay和Krasny（2001）的笛卡尔坐标中的泰勒展开，通过自适应树码算法评估粒子的速度。该方法允许考虑旋涡环不稳定性的很多后期阶段，这可能会为直接导致湍流的复杂流动阶段提供启示。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号