Adaptive panel representation for oblique collision of two vortex rings

Autor:	Leon Kaganovskiy
Rok vydání:	2011
Předmět:	Physics Applied Mathematics Mechanical Engineering Geometry Vorticity Starting vortex Vortex ring Vortex Physics::Fluid Dynamics Mechanics of Materials Vortex stretching Vortex sheet Horseshoe vortex Burgers vortex
Zdroj:	International Journal of Non-Linear Mechanics. 46:9-13
ISSN:	0020-7462
DOI:	10.1016/j.ijnonlinmec.2010.06.006
Popis:	In this article, we use a hierarchical panel method for representing vortex sheet surface motion in 3D flow to investigate the oblique collision of two vortex rings. The particles representing the sheet are advected by a regularized Biot–Savart integral with smoothed Rosenhead–Moore kernel. The particle velocities are evaluated by an adaptive treecode algorithm based on Taylor expansions in Cartesian coordinates. The method allowed us to consider late stages of a vortex rings collision, producing a funnel region. Vorticity iso-surfaces evolution is also investigated.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::af9597af244ce56ad17160d7973be128 https://doi.org/10.1016/j.ijnonlinmec.2010.06.006 Zobrazit plný text záznamu Full Text from ScienceDirect