Journal
COMPUTERS & FLUIDS
Volume 141, Issue -, Pages 201-211Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.compfluid.2015.07.013
Keywords
Hydrofoil propulsion; Fluid-structure interaction; Bioinspired engineering; ALE-VMS; IGA
Funding
- Office of Advanced Cyberinfrastructure (OAC)
- Direct For Computer & Info Scie & Enginr [1055091] Funding Source: National Science Foundation
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Fluid-structure interaction (FSI) analysis of the Mirage Drive, a bioinspired propulsion system utilizing compliant hydrofoils designed and built by Hobie Cat Co, is performed. The current work continues a recent experimental and numerical FSI study of a single compliant hydrofoil, and presents, for the first time, full-scale FSI simulation of two compliant hydrofoils in a tandem configuration. The underlying computational challenges are addressed by means of core FSI methods (i.e., the ALE-VMS formulation, weakly enforced no-slip boundary conditions, the sliding-interface technique, and a quasi-direct coupling strategy), as well as special FSI techniques developed for this problem class. Details of the computational framework are discussed, and the computational results are validated using data from field tests, which are also described in the manuscript. (C) 2015 Elsevier Ltd. All rights reserved.
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