Research on the Calculation Method of Pressure Field Caused by the Ship Moving at Subcritical Speed in Shallow Water

DENG Hui; ZHANG Zhi-hong; LIU Ju-bin; GU Jian-nong

doi:10.3879/j.issn.1000-0887.2013.08.008

Volume 34 Issue 8

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DENG Hui, ZHANG Zhi-hong, LIU Ju-bin, GU Jian-nong. Research on the Calculation Method of Pressure Field Caused by the Ship Moving at Subcritical Speed in Shallow Water[J]. Applied Mathematics and Mechanics, 2013, 34(8): 846-854. doi: 10.3879/j.issn.1000-0887.2013.08.008

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Research on the Calculation Method of Pressure Field Caused by the Ship Moving at Subcritical Speed in Shallow Water

doi: 10.3879/j.issn.1000-0887.2013.08.008

College of Science, Naval University of Engineering, Wuhan 430033, P.R.China

Received Date: 2012-12-29
Rev Recd Date: 2013-05-31
Publish Date: 2013-08-15

Abstract

Abstract

A mathematical model for pressure field caused by the ship moving at subcritical speed in shallow water was established, based on the shallow water wave potential flow theory and slender ship assumption. The pressure field caused by the ship moving at subcritical speed in shallow water was calculated by the finite difference method.The effects of channel wall, depth Froude number and dispersion characteristics on the ship hydrodynamic pressure field were analyzed.The calculation results were improved by the virtual length method.The computed results were compared with the ones calculated by source distribution method,Fourier integral transform method and experimental results. The mathematical model and the calculation method were validated.
- shallow water,
- subcritical,
- ship hydrodynamic pressure field,
- finite difference method,
- source distribution method,
- Fourier integral transform method

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References(10)

References

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