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Calculation of three-dimensional, viscous flow through turbomachinery blade passages by parabolic marching
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Katsanis, T. |
| Copyright Year | 1985 |
| Description | The three-dimensional compressible Navier-Stokes equations are formulated in a rotating coordinate system, so as to include centrifugal and Coriolis forces. The equations are parabolized by using a previously calculated inviscid static pressure field. The thin layer Navier-Stokes approximation, which neglects streamwise diffusion, is used. A body-fitted coordinate system is used. The streamwise momentum equation is uncoupled from the cross-stream momentum equation by using contravariant momentum components, and then using the contravariant velocity components as primary unknowns. To reduce problems with small separated regions, the Reyhner and Flugge-Lotz approximation is used. The energy equation is included to allow for calculation of heat transfer. The flow may be laminar, or a simple eddy-viscosity turbulence may be used. A number of curved ducts and an axial stator were analyzed, including cases for which experimental data are available. |
| File Size | 1896296 |
| Page Count | 29 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19850015400 |
| Archival Resource Key | ark:/13960/t1wd8r533 |
| Language | English |
| Publisher Date | 1985-07-11 |
| Access Restriction | Open |
| Subject Keyword | Aerodynamics Navier-stokes Equation Three Dimensional Flow Rotor Blades Turbomachinery Vortices Stators Coriolis Effect Heat Transfer Viscous Flow Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
