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Wave models for turbulent free shear flows
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Morris, P. J. Liou, W. W. |
| Copyright Year | 1991 |
| Description | New predictive closure models for turbulent free shear flows are presented. They are based on an instability wave description of the dominant large scale structures in these flows using a quasi-linear theory. Three model were developed to study the structural dynamics of turbulent motions of different scales in free shear flows. The local characteristics of the large scale motions are described using linear theory. Their amplitude is determined from an energy integral analysis. The models were applied to the study of an incompressible free mixing layer. In all cases, predictions are made for the development of the mean flow field. In the last model, predictions of the time dependent motion of the large scale structure of the mixing region are made. The predictions show good agreement with experimental observations. |
| File Size | 1323936 |
| Page Count | 15 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19910011773 |
| Archival Resource Key | ark:/13960/t3cz84b6r |
| Language | English |
| Publisher Date | 1991-01-01 |
| Access Restriction | Open |
| Subject Keyword | Fluid Mechanics And Heat Transfer Dynamic Response Turbulent Flow Computational Fluid Dynamics Shear Flow Flow Stability Time Dependence Incompressible Flow Wave Propagation Turbulence Models Flow Distribution Predictions Mathematical Models Free Flow Mixing Layers Fluids Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
