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Semidirect computations for transonic flow
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Swisshelm, J. M. Adamczyk, J. J. |
| Copyright Year | 1983 |
| Description | A semidirect method, driven by a Poisson solver, was developed for inviscid transonic flow computations. It is an extension of a recently introduced algorithm for solving subsonic rotational flows. Shocks are captured by implementing a form of artificial compressibility. Nonisentropic cases are computed using a shock tracking procedure coupled with the Rankine-Hugoniot relationships. Results are presented for both subsonic and transonic flows. For the test geometry, an unstaggered cascade of 20 percent thick circular arc airfoils at zero angle of attack, shocks are crisply resolved in supercritical situations and the algorithm converges rapidly. In addition, the convergence rate appears to be nearly independent of the entropy and vorticity production at the shock. |
| File Size | 1487440 |
| Page Count | 15 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19830026638 |
| Archival Resource Key | ark:/13960/t8x971x0n |
| Language | English |
| Publisher Date | 1983-01-01 |
| Access Restriction | Open |
| Subject Keyword | Aerodynamics Transonic Flow Algorithms Computational Fluid Dynamics Subsonic Flow Vorticity Inviscid Flow Airfoils Entropy Rankine-hugoniot Relation Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
