71th Annual Meeting of the APS Division of Fluid Dynamics (November 18, 2018 — November 20, 2018)

V0098: Momentum and strain energy transfer in structurally flexible pitching hydrofoil

Authors
  • Namshad Thekkethil, Indian Institute of Technology Bombay
  • Atul Sharma, Indian Institute of Technology Bombay
  • Amit Agrawal, Indian Institute of Technology Bombay

Pitching motion of hydrofoil (inspired from motion of the tail of fishes with hydrofoil cross section) can be proposed as an efficient thrust generation mechanism in aquatic propulsion systems. As seen in real fishes, flexibility of the tail helps to improve the propulsive performance. We present fluid dynamic movies of structurally flexible pitching hydrofoil in a free-stream flow to describe the effect of structural flexibility on propulsive performance.

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