A compressible Reynolds-averaged Navier-Stokes (RANS) solver is used to improve the design of a microscale shroud applicable formicro air vehicle(MAV) applications.The new shroud is primarily designed to improve the hover performance; however, it is also shaped to better suit nonhovering flight conditions.The proposed shroud design has an elliptic shape on the inner portion of the shroud inlet and a circular shape on the outer portion. A collective angle sweep study of the shrouded rotor configuration using the proposed shroud design shows significant performance benefits in hover.
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