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© 2017 American Scientific Publishers All rights reserved. Land vehicle platooning improves the overall fuel economy of the fleet by decreasing its total air resistance. In this work, we investigate the drag forces on a five-glider fleet of underwater gliders, both in a conventional “V” and an alternative, more compact, 3D “V” formation. In addition, the effect of transverse, longitudinal and vertical separation of these gliders on the drag forces is studied. Our study uses ANSYS Fluent with Re- Normalization Group (RNG) k-epsilon model with non-equilibrium wall function as the turbulence model. Based on the simulation results, a low drag of 2.7 N, similar that achieved in a “V” formation, can be achieved with the more compact 3D “V” formation, which has a smaller footprint. The lowest drag was achieved at 1.1 m longitudinal and transverse separation with 0.2 m vertical separation for a 1.03 m glider with a 0.28 m diameter and 0.98 m wingspan.

Original publication

DOI

10.1166/asl.2017.8371

Type

Journal article

Journal

Advanced Science Letters

Publication Date

01/02/2017

Volume

23

Pages

1272 - 1276