Numerical study of fluid resonance induced by wave action on multi-boxes with narrow gaps

Ning Dezhi; Su Xiaojie; Teng Bin

doi:10.3969/j.issn.0253-4193.2015.03.013

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Ning Dezhi, Su Xiaojie, Teng Bin. Numerical study of fluid resonance induced by wave action on multi-boxes with narrow gaps[J]. Haiyang Xuebao, 2015, 37(3): 126-133. doi: 10.3969/j.issn.0253-4193.2015.03.013

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Ning Dezhi, Su Xiaojie, Teng Bin. Numerical study of fluid resonance induced by wave action on multi-boxes with narrow gaps[J]. Haiyang Xuebao, 2015, 37(3): 126-133. doi: 10.3969/j.issn.0253-4193.2015.03.013

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Numerical study of fluid resonance induced by wave action on multi-boxes with narrow gaps

doi: 10.3969/j.issn.0253-4193.2015.03.013

State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China

Received Date: 2014-01-22

Abstract

Abstract

Based on wave generation technique by a inner-domain source,a two-dimensional nonlinear numerical wave flume over time is developed to investigate the fluid resonance induced by the interaction between wave and multi-objects with narrow gaps. In the numerical model,the fully nonlinear kinematic and dynamic boundary conditions are set for the instantaneous free surface; the artificial damping is introduced into the gap to simulate the viscous dissipation due to vortex motion and flow separation; the computational domain is discretized using higher-order boundary elements. The proposed model is validated by the published experimental and numerical data of the relative wave height at two narrow gaps of three boxes.Numerical experiments are performed to study the following: the effects of the number of the boxes on the resonant frequency,wave height at various gaps and the reflected and transmitted wave heights of the objects.
- narrow gap,
- fluid resonance,
- inner-domain source generation technique,
- higher-order boundary element,
- nonlinear numerical wave flume

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References(17)

References

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