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Numerical simulation of stability and stability control of high speed compressible rotating couette flow
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Hatay, Ferhat F. Biringen, Sedat |
| Copyright Year | 1993 |
| Description | The nonlinear temporal evolution of disturbances in compressible flow between infinitely long, concentric cylinders is investigated through direct numerical simulations of the full, three-dimensional Navier-Stokes and energy equations. Counter-rotating cylinders separated by wide gaps are considered with supersonic velocities of the inner cylinder. Initially, the primary disturbance grows exponentially in accordance with linear stability theory. As the disturbances evolve, higher harmonics and subharmonics are generated in a cascading order eventually reaching a saturation state. Subsequent highly nonlinear stages of the evolution are governed by the interaction of the disturbance modes, particularly the axial subharmonics. Nonlinear evolution of the disturbance field is characterized by the formation of high-shear layers extending from the inner cylinder towards the center of the gap in the form of jets similar to the ejection events in transitional and turbulent wall-bounded shear flows. |
| File Size | 1870792 |
| Page Count | 50 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19950023829 |
| Archival Resource Key | ark:/13960/t47q3x070 |
| Language | English |
| Publisher Date | 1993-01-01 |
| Access Restriction | Open |
| Subject Keyword | Fluid Mechanics And Heat Transfer Supersonic Flow Harmonics Nonlinear Equations Turbulent Flow Coordinates Computerized Simulation Concentric Cylinders Counter Rotation Flow Stability Navier-stokes Equation Rotating Fluids Equations of State Three Dimensional Flow High Speed Centrifugal Force Mathematical Models Couette Flow Energy Methods Linear Equations Three Dimensional Models Compressible Flow 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 |
