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Delagrange, Christopher T. (2012)
Publisher: Monterey, California. Naval Postgraduate School
Types: Doctoral thesis
Subjects: Vertical take-off, VTOL, cross-flow fan, CFF
Approved for public release; distribution is unlimited The present study is focused on determining a housing design that, when paired with an off-the-shelf cross-flow fan rotor, will generate a trust-to-weight ratio significant enough to allow for vertical take-off. The commercial computational fluid dynamics software, ANSYS CFX, was used to perform a computational analysis of various housing designs until a suitable design was identified to construct for experimentation. Following the analytical phase, the conceptual housing was fabricated and paired with an appropriate rotor to validate the predicted performance. The experimental model was operated at speeds from 4,000 to 8,000 rpm and the actual and projected thrust calculations were found to agree with a maximum difference of less than 7percent. Outstanding Thesis Lieutenant, United States Navy
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