Study on vortex flow control of inlet distortion
| Autor: | Enrico Cavatorta, Bernhard H. Anderson, Pao S. Huang, William A. Paschal |
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| Rok vydání: | 1992 |
| Předmět: | |
| Zdroj: | Journal of Propulsion and Power. 8:1266-1272 |
| ISSN: | 1533-3876 0748-4658 |
| DOI: | 10.2514/3.11472 |
| Popis: | The present study demonstrates that the reduced Navier-Stokes code (RNS3D) can be used very effectively to develop a vortex generator installation for the purpose of minimizing the engine-face circumferential distortion by controlling the development of secondary flow. The computing times required are small enough that studies such as this are feasible within a design environment with all its constraints of time and costs. A series of design observations were made concerning the importance of various vortex generator design parameters in minimizing engine-face circumferential distortion. The study showed that vortex strength, generator scale, and secondary flowfield structure have a complicated and interrelated influence on the engine-face distortion, over and above the initial geometry and arrangement of the generators. Overall, the installed vortex generator performance was found to be a function of three categories of variables: 1) the inflow conditions, i.e., throat Mach number (inlet mass flow), Reynolds number, etc.; 2) the aerodynamic characteristics associated with the inlet duct; and 3) the design parameters related to the geometry, arrangement, and placement of the vortex generators within the inlet duct itself. |
| Databáze: | OpenAIRE |
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