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Stability of mixing layers
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Krothapalli, A. Tam, Christopher |
| Copyright Year | 1993 |
| Description | The research program for the first year of this project (see the original research proposal) consists of developing an explicit marching scheme for solving the parabolized stability equations (PSE). Performing mathematical analysis of the computational algorithm including numerical stability analysis and the determination of the proper boundary conditions needed at the boundary of the computation domain are implicit in the task. Before one can solve the parabolized stability equations for high-speed mixing layers, the mean flow must first be found. In the past, instability analysis of high-speed mixing layer has mostly been performed on mean flow profiles calculated by the boundary layer equations. In carrying out this project, it is believed that the boundary layer equations might not give an accurate enough nonparallel, nonlinear mean flow needed for parabolized stability analysis. A more accurate mean flow can, however, be found by solving the parabolized Navier-Stokes equations. The advantage of the parabolized Navier-Stokes equations is that its accuracy is consistent with the PSE method. Furthermore, the method of solution is similar. Hence, the major part of the effort of the work of this year has been devoted to the development of an explicit numerical marching scheme for the solution of the Parabolized Navier-Stokes equation as applied to the high-seed mixing layer problem. |
| File Size | 290947 |
| Page Count | 12 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19930010791 |
| Archival Resource Key | ark:/13960/t2896433n |
| Language | English |
| Publisher Date | 1993-01-22 |
| Access Restriction | Open |
| Subject Keyword | Fluid Mechanics And Heat Transfer Flow Stability Navier-stokes Equation Stability Tests Algorithms Finite Difference Theory Nonlinearity Boundary Conditions Boundary Layer Equations Numerical Stability Mixing Layers Fluids Boundary Layer Flow Parabolic Differential Equations Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
