Structure and Dynamics of Turbulent Wall Layers
Abstract
The three-dimensional structure of the turbulent motion of fluid flowing close to a surface has been studied using the technique of linear mean square stochastic estimation to find estimates of the flow field when certain events occur in the flow. The structures given the velocity at one point have been documented, and their dynamic evolution is being studied. It is shown that they are long-lived. One-point events provide insight into the physical bases of closure approximations in one-point moment closures, and they have been used to provide a new closure approximation for the fast pressure-strain correlation. Stochastic estimation is used as a means of defining three-dimensional, dynamic wall boundary conditions for large eddy simulations.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 10, 1994
- Accession Number
- ADA285360
Entities
People
- Ronald J. Adrian
Organizations
- University of Illinois Urbana–Champaign