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A study on vortex flow control on inlet distortion in the re-engined 727-100 center inlet duct using computational fluid dynamics
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Anderson, Bernhard H. Paschal, William A. Huang, Pao S. Cavatorta, Enrico |
| Copyright Year | 1992 |
| Description | Computational fluid dynamics was used to investigate the management of inlet distortion by the introduction of discrete vorticity sources at selected locations in the inlet for the purpose of controlling secondary flow. These sources of vorticity were introduced by means of vortex generators. 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 flow field structure have a complicated and interrelated influence on the engine face distortion, over and above the initial geometry and arrangement of the generators. The installed vortex generator performance was found to be a function of three categories of variables: the inflow conditions, the aerodynamic characteristics associated with the inlet duct, and the design parameters related to the geometry, arrangement, and placement of the vortex generators within the outlet duct itself. |
| File Size | 1280385 |
| Page Count | 14 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19920004780 |
| Archival Resource Key | ark:/13960/t8z94529m |
| Language | English |
| Publisher Date | 1992-01-01 |
| Access Restriction | Open |
| Subject Keyword | Aerodynamics Computational Fluid Dynamics Ducts Distortion Intake Systems Design Analysis Jet Engines Ducted Flow Vortices Boeing 727 Aircraft Flow Distribution Vorticity Vortex Generators Secondary Flow Aerodynamic Characteristics Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
