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United States of America Patent
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Aug 16, 2017
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Sep 13, 2016
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Abstract
A boundary layer Ingesting (BLI) fan system operates with a highly non-uniform flow field that propagates through the fan stage. The fan stage suffers from hub separations, increased wake thicknesses and casing losses. These loss sources can be reduced or eliminated by varying the inlet metal angles and/or chordal lengths of the downstream fan stators. Greater improvement can further be made by non-axisymmetrically leaning the stators
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