Research in Chaotic and Turbulent Fluid Dynamics
Abstract
Fundamental problems in vortex dynamics: Additional results on both integrable and chaotic point vortex dynamics have been obtained. These include the elucidation of chaotic scattering within point vortex systems, the discovery of a particularly simple integrable case for the three-vortex problem, and the exploration of the relationship between vortex sound emitted by interacting point vortices and complex time singularities. Suggestions have been made on the role that chaos in vortex interactions may play in 'real' flows, such as shear layers and wakes, and how turbulence can be viewed as a dynamical system of interacting vortices. Vortex methods for 3D simulations: In order to perform 3D vortex interaction simulations it was necessary to develop a 3D version of the vortex-in-cell methodology that is well known in 2D. The code produced was used to study vortex ring reconnections, including topology change and scalar mixing.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1991
- Accession Number
- ADA259700
Entities
People
- Henry D. Abarbanel
- Herbert Levine
- Morteza Gharib
Organizations
- University of California, San Diego