Numerical simulations are carried out for gap resonance problem between two side-by-side non-identical boxes. The linear potential model over-predicts the resonant amplitude in the narrow gap because it not only neglects the energy dissipation due to vortical motion, but also neglect the nonlinearity due to free surface. More relative energy are reflected with the increase of incident wave amplitude, leading to the decrease of relative resonant amplitude and relative energy dissipation in the narrow gap at resonant frequency. When the incident wave frequency is outside a little band to resonant frequency, relative energy dissipation becomes the dominant factor for the decrease of relative wave amplitude in the narrow gap with the increase of incident wave amplitudes. In a word, both the free surface nonlinearity and fluid viscosity play the important, but different, roles on wave resonances in the narrow gap.
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ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering
June 25–30, 2017
Trondheim, Norway
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-5773-1
PROCEEDINGS PAPER
Effect of Free Surface Nonlinear and Fluid Viscosity on Fluid Resonance in the Narrow Gap
Sheng-chao Jiang,
Sheng-chao Jiang
Dalian University of Technology, Dalian, China
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Li Zou,
Li Zou
Dalian University of Technology, Dalian, China
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Tie-zhi Sun,
Tie-zhi Sun
Dalian University of Technology, Dalian, China
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Chang-feng Liu
Chang-feng Liu
Dalian Ocean University, Dalian, China
Search for other works by this author on:
Sheng-chao Jiang
Dalian University of Technology, Dalian, China
Li Zou
Dalian University of Technology, Dalian, China
Tie-zhi Sun
Dalian University of Technology, Dalian, China
Chang-feng Liu
Dalian Ocean University, Dalian, China
Paper No:
OMAE2017-62480, V07AT06A014; 8 pages
Published Online:
September 25, 2017
Citation
Jiang, S, Zou, L, Sun, T, & Liu, C. "Effect of Free Surface Nonlinear and Fluid Viscosity on Fluid Resonance in the Narrow Gap." Proceedings of the ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering. Volume 7A: Ocean Engineering. Trondheim, Norway. June 25–30, 2017. V07AT06A014. ASME. https://doi.org/10.1115/OMAE2017-62480
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