Self-similar behaviour of a rotor wake vortex core

被引：12
作者：
Ali, Mohamed
Abid, Malek [1 ]
机构：
[1] CNRS, IRPHE, Cent Marseille, UMR 7342, F-13384 Marseille 13, France
来源：
JOURNAL OF FLUID MECHANICS | 2014年 / 740卷
关键词：
Navier-Stokes equations; wakes; vortex dynamics; STABILITY; AERODYNAMICS; VORTICES;
D O I：
10.1017/jfm.2013.636
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
We report a self-similar behaviour of solutions (obtained numerically) of the Navier-Stokes equations behind a single-blade rotor. That is, the helical vortex core in the wake of a rotating blade is self-similar as a function of its age. Profiles of vorticity and azimuthal velocity in the vortex core are characterized, their similarity variables are identified and scaling laws of these variables are given. Solutions of incompressible three-dimensional Navier-Stokes equations for Reynolds numbers up to Re = 2000 are considered.
引用
收藏
页码：R1 / R12
页数：12
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