| タイトル | Unsteady flowfield simulation of ducted prop-fan configurations |
| 著者（英） | Janus, J. M.; Horstman, Howard Z.; Whitfield, David L. |
| 著者所属（英） | NASA Lewis Research Center |
| 発行日 | 1992-01-01 |
| 言語 | eng |
| 内容記述 | A technique for the simulation of unsteady flows in and around complex rotating machinery is presented. Additional domain decomposition mechanisms are introduced which extend the range of applicability of software developed for the time-accurate simulation of rotating machinery flowfields. The flow models uses the unsteady 3D Euler equations, discretized as a finite-volume method, utilizing a high-resolution approximate Riemann solver for cell interface flux definitions. Multiblock domain decomposition is used to partition the field radially, axially, as well as circumferentially into an ordered arrangement of blocks which exhibit varying degrees of similarity. A general high-order numerical scheme is applied to satisfy the geometric conservation law. Two configurations are presented - ducted single rotation prop-fan and a rotor-deswirl vane combination which form a single stage fan. Comparisons are made to other numerical solutions for these geometries and to available experimental data. |
| NASA分類 | AERODYNAMICS |
| レポートNO | 92A26946
AIAA PAPER 92-0521 |
| 権利 | Copyright |
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