Study of the Origin of Three Dimensional Structures in Shear Flows through External Forcing
Abstract
The intent of the present work is to study the origin of three dimensional structures in shear flows through external forcing. Experiments are performed to study transition routes between the laminar two-dimensional stages of shear flows and their final complex three-dimensional stages. The investigations examine the general idea of a multi frequency transition route to chaos which treats the shear flow as an open dynamical system. An attempt is made to apply concepts from nonlinear dynamics to these systems. Secondly, we examine a new approach to generate three-dimensional structures in shear flows which involves the creation of a spatial shear in the frequency of external perturbations. Experiments on the aforementioned ideas are applied to a plane mixing layer. Shear flows, Control experiment.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 23, 1988
- Accession Number
- ADA205144
Entities
People
- K. Stuber
- M. Gharib
Organizations
- University of California, San Diego