Urban Wake Field Generation Using LES for Application to Quadrotor Flight
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A method is presented for using LES to generate urban wake fields for use in studying their effects on autonomous quadrotor's flight performance. The flow field is generated around a single square building using OpenFOAM, and a MATLAB/Simulink flight simulator is used to compare the difference in flight performance between wake fields generated by RANS and LES. It is found LES causes maximum position deviations 2 orders of magnitude larger compared to RANS, and results in skewed deviations by as much as 5 to 1 in a given direction. Since the transient turbulent LES wake field more accurately reflects the flow present behind real world structures, LES generated wake fields should be used when designing and testing autonomous control algorithms for multirotor UAVs on the order of 0.5 m in size and 2 kg in mass.
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Copyright © 2015 the author(s). Theses may be used for non-commercial research, educational, or related academic purposes only. Such uses include personal study, research, scholarship, and teaching. Theses may only be shared by linking to Carleton University Institutional Repository and no part may be used without proper attribution to the author. No part may be used for commercial purposes directly or indirectly via a for-profit platform; no adaptation or derivative works are permitted without consent from the copyright owner.
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- 2015
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sutherland-urbanwakefieldgenerationusinglesforapplication.pdf | 2023-05-04 | Public | Download |