Affiliation:
1. Nagoya University Center for Information Media Studies Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
Abstract
The air-water bubbly flow around a hydrofoil of NACA65-010, undergoing the heaving and pitching motions in the uniform flow on a horizontal plane, is simulated by an incompressible two-fluid model. The finite element method proposed in a prior paper is applied to solve the model. The Reynolds number defined by the volumetric velocity of the water is 10000 and the volumetric fraction of the air upstream of the hydrofoil, αg0, ranges from 0 to 0.06. The simulation reveals the effects of the αg0 value, the phase difference between the heaving and pitching motions, and the oscillating frequency. The propulsive performance is also discussed in relation to the time variation of the flow properties around the hydrofoil.
Cited by
5 articles.
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