modelling of a boundary layer ingesting propulsor
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ID: 216547
2018
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Abstract
Boundary layer ingestion is a promising method to decrease the propulsive power consumption of an aircraft, and therefore the fuel consumption. This leads to a reduced environmental impact and an improved cost-efficiency. To get a better understanding of this method and to estimate its benefits, the modelling of a propulsor located at the upper rear centerbody of a blended wing body aircraft is presented in this paper. A parallel compressor model approach is used to analyse the impact of the ingested low velocity fluid which leads to a non-uniform inflow. The required boundary layer data are generated with an analysis tool for 2D subsonic airfoils. Some parameter variations are conducted with the developed programme to study their impact on the power saving potential. In addition, a simple estimation for the benefit of embedded aeroengines is given. Despite the drawback from fan efficiency due to the inflow distortion, the results show a significant decrease in required propulsive power for boundary layer ingestion in combination with integrated engines.
| Reference Key |
budziszewski2018energiesmodelling
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|---|---|
| Authors | ;Nils Budziszewski;Jens Friedrichs |
| Journal | acs combinatorial science |
| Year | 2018 |
| DOI |
10.3390/en11040708
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| URL | |
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