Experimental manipulation of wall turbulence: A systems approach
Abstract
We review recent progress, based on the approach introduced by McKeon and Sharma [J. Fluid Mech. 658, 336–382 (2010)10.1017/S002211201000176X], in understanding and controlling wall turbulence. The origins of this analysis partly lie in nonlinear robust control theory, but a differentiating feature is the connection with, and prediction of, state-of-the-art understanding of velocity statistics and coherent structures observed in real, high Reynolds number flows. A key component of this line of work is an experimental demonstration of the excitation of velocity response modes predicted by the theory using non-ideal, but practical, actuation at the wall. Limitations of the approach and promising directions for future development are outlined.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Mar 01, 2013
- Source ID
- 10.1063/1.4793444
Entities
People
- A. S. Sharma
- B. J. Mckeon
- I. Jacobi
Organizations
- Air Force Office of Scientific Research
- California Institute of Technology
- Engineering and Physical Sciences Research Council
- National Science Foundation
- University of Sheffield