Divorticity and dihelicity in two-dimensional hydrodynamics

被引：4
|
作者：
Shivamoggi, B. K. [1 ,2 ,4 ]
van Heijst, G. J. F. [1 ,2 ]
Rasmussen, J. Juul [3 ]
机构：
[1] Eindhoven Univ Technol, JM Burgers Ctr, NL-5600 MB Eindhoven, Netherlands
[2] Eindhoven Univ Technol, Fluid Dynam Lab, Dept Phys, NL-5600 MB Eindhoven, Netherlands
[3] Tech Univ Denmark, Plasma Phys & Technol Programme, Riso Natl Lab Sustainable Energy, DK-4000 Roskilde, Denmark
[4] Univ Cent Florida, Orlando, FL 32816 USA
来源：
PHYSICS LETTERS A | 2010年 / 374卷 / 23期
关键词：
ENSTROPHY CASCADES; INVERSE ENERGY; VORTEX LINES; SOAP FILMS; TURBULENCE; VORTICITY; DYNAMICS; FLOWS; IDEAL;
D O I：
10.1016/j.physleta.2010.03.062
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A framework is developed based on the concepts of divorticity B (equivalent to del x omega, omega being the vorticity) and dihelicity g (equivalent to v . B) for discussing the theoretical structure underlying two-dimensional (2D) hydrodynamics. This formulation leads to the global and Lagrange invariants that could impose significant constraints on the evolution of divorticity lines in (C) 2D hydrodynamics. 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：2309 / 2311
页数：3
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