Quantitative investigation of inlet vortex flow field
March 1984
| Main Authors: | , |
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| Other Authors: | |
| Format: | Technical Report |
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Cambridge, Mass. : Gas Turbine & Plasma Dynamics Laboratory, Massachusetts Institute of Technology, [1984]
2016
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| Online Access: | http://hdl.handle.net/1721.1/104722 |
| _version_ | 1826191064898207744 |
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| author | Shin, Hyoun-Woo Shippee, Cheryl (Cheryl Lynn) |
| author2 | Massachusetts Institute of Technology. Gas Turbine and Plasma Dynamics Laboratory |
| author_facet | Massachusetts Institute of Technology. Gas Turbine and Plasma Dynamics Laboratory Shin, Hyoun-Woo Shippee, Cheryl (Cheryl Lynn) |
| author_sort | Shin, Hyoun-Woo |
| collection | MIT |
| description | March 1984 |
| first_indexed | 2024-09-23T08:49:57Z |
| format | Technical Report |
| id | mit-1721.1/104722 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T08:49:57Z |
| publishDate | 2016 |
| publisher | Cambridge, Mass. : Gas Turbine & Plasma Dynamics Laboratory, Massachusetts Institute of Technology, [1984] |
| record_format | dspace |
| spelling | mit-1721.1/1047222019-04-10T19:18:08Z Quantitative investigation of inlet vortex flow field Shin, Hyoun-Woo Shippee, Cheryl (Cheryl Lynn) Massachusetts Institute of Technology. Gas Turbine and Plasma Dynamics Laboratory TJ778.M41 G24 no.179 Vortex-motion Compressors -- Aerodynamics March 1984 Includes bibliographical references (leaf 126) A quantitative investigation of the flow field of an inlet in cross-wind has been carried out for various operating conditions, including flow regimes representative of aircraft engine inlets at take-off. The measurements were made to show the influence of two non-dimensional parameters, height of the inlet above the ground to the inlet diameter ratio (H/D), and velocity ratio (Ui/Ue), on the vortex strength (i.e., circulation) and the position of the vortex inside the inlet. In general, as H/D is decreased and/or Ui/Ue is increased, the vortex strengthens. In addition, at an operating condition where a strong inlet vortex was present, the circulation of both the inlet and trailing vortices was determined. These were found to be essentially equal in magnitude but opposite in sign, verifying a previous hypothesis concerning the vortical structure of the flow. Qualitative flow visualization has been done to examine two aspects of the inlet/trailing vortex flow field. One is the nature of the transition between regimes in which an inlet vortex is present and those in which no inlet vortex exists. The other deals with the extent of the separated region on the inlet body. The results of this study were used to support a conceptual model of the formation of an inlet/trailing vortex system for an inlet in a cross-wind. Air Force Office of Scientific Research Contract no. F49620-82-K-0002 2016-10-06T21:22:11Z 2016-10-06T21:22:11Z 1984 Technical Report http://hdl.handle.net/1721.1/104722 16205992 GT & PDL report ; no. 179 168 leaves application/pdf Cambridge, Mass. : Gas Turbine & Plasma Dynamics Laboratory, Massachusetts Institute of Technology, [1984] |
| spellingShingle | TJ778.M41 G24 no.179 Vortex-motion Compressors -- Aerodynamics Shin, Hyoun-Woo Shippee, Cheryl (Cheryl Lynn) Quantitative investigation of inlet vortex flow field |
| title | Quantitative investigation of inlet vortex flow field |
| title_full | Quantitative investigation of inlet vortex flow field |
| title_fullStr | Quantitative investigation of inlet vortex flow field |
| title_full_unstemmed | Quantitative investigation of inlet vortex flow field |
| title_short | Quantitative investigation of inlet vortex flow field |
| title_sort | quantitative investigation of inlet vortex flow field |
| topic | TJ778.M41 G24 no.179 Vortex-motion Compressors -- Aerodynamics |
| url | http://hdl.handle.net/1721.1/104722 |
| work_keys_str_mv | AT shinhyounwoo quantitativeinvestigationofinletvortexflowfield AT shippeecherylcheryllynn quantitativeinvestigationofinletvortexflowfield |