Analysis of civil aircraft propulsors with boundary layer ingestion
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 2015.
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| Other Authors: | |
| Format: | Thesis |
| Language: | eng |
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Massachusetts Institute of Technology
2015
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| Online Access: | http://hdl.handle.net/1721.1/97353 |
| _version_ | 1811087260054978560 |
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| author | Hall, David Kenneth |
| author2 | Edward M. Greitzer. |
| author_facet | Edward M. Greitzer. Hall, David Kenneth |
| author_sort | Hall, David Kenneth |
| collection | MIT |
| description | Thesis: Ph. D., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 2015. |
| first_indexed | 2024-09-23T13:42:36Z |
| format | Thesis |
| id | mit-1721.1/97353 |
| institution | Massachusetts Institute of Technology |
| language | eng |
| last_indexed | 2024-09-23T13:42:36Z |
| publishDate | 2015 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/973532019-04-10T23:28:25Z Analysis of civil aircraft propulsors with boundary layer ingestion Hall, David Kenneth Edward M. Greitzer. Massachusetts Institute of Technology. Department of Aeronautics and Astronautics. Massachusetts Institute of Technology. Department of Aeronautics and Astronautics. Aeronautics and Astronautics. Thesis: Ph. D., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 2015. Cataloged from PDF version of thesis. Includes bibliographical references (pages 113-116). This thesis describes (i) guidelines for propulsor sizing, and (ii) strategies for fan turbomachinery conceptual design, for a boundary layer ingesting (BLI) propulsion system for advanced civil transport aircraft. For the former, configuration performance analysis shows BLI yields a reduction in mechanical power required to propel a given aircraft. For the latter, fan turbomachinery design attributes are identified to mitigate the impact of BLI inlet distortion on propulsor performance. The propulsion system requirements are determined using a mechanical energy analysis, in which the performance of the airframe and propulsor are characterized in terms of sources and sinks of power. Using this framework, the propulsor can be sized based on the performance of the isolated airframe. Analysis of the power savings due to BLI (from reduction of viscous dissipation both in the aircraft wake and the propulsor jet) leads to scaling choices for the sizing of propulsor simulators for wind tunnel experiments to assess BLI benefit. Fan stage distortion response is assessed computationally for a range of turbomachinery design parameters and for distortions characteristic of BLI. The numerical results show the importance of three-dimensional flow redistribution upstream of the fan, and indicate that, for the parameters examined, non-axisymmetric fan stators have the largest effect on decreasing blade row velocity distortions and thus mitigating losses due to flow non-uniformity. by David Kenneth Hall. Ph. D. 2015-06-10T19:12:50Z 2015-06-10T19:12:50Z 2015 2015 Thesis http://hdl.handle.net/1721.1/97353 910627725 eng M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 116 pages application/pdf Massachusetts Institute of Technology |
| spellingShingle | Aeronautics and Astronautics. Hall, David Kenneth Analysis of civil aircraft propulsors with boundary layer ingestion |
| title | Analysis of civil aircraft propulsors with boundary layer ingestion |
| title_full | Analysis of civil aircraft propulsors with boundary layer ingestion |
| title_fullStr | Analysis of civil aircraft propulsors with boundary layer ingestion |
| title_full_unstemmed | Analysis of civil aircraft propulsors with boundary layer ingestion |
| title_short | Analysis of civil aircraft propulsors with boundary layer ingestion |
| title_sort | analysis of civil aircraft propulsors with boundary layer ingestion |
| topic | Aeronautics and Astronautics. |
| url | http://hdl.handle.net/1721.1/97353 |
| work_keys_str_mv | AT halldavidkenneth analysisofcivilaircraftpropulsorswithboundarylayeringestion |