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Citation:
　ongde Qin,Linyue Zhao and Jing Shen.A Modified Logvinovich Model For Hydrodynamic Loads on an Asymmetric Wedge Entering Water with a Roll Motion[J].Journal of Marine Science and Application,2011,(2):184-189.
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A Modified Logvinovich Model For Hydrodynamic Loads on an Asymmetric Wedge Entering Water with a Roll Motion

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Title:
A Modified Logvinovich Model For Hydrodynamic Loads on an Asymmetric Wedge Entering Water with a Roll Motion
Author(s):
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Affilations:
Author(s):
ongde Qin;  Linyue Zhao and Jing Shen
College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China
Keywords:
water entry;  roll motion;  modified Logvinovich model(MLM);  asymmetric wedge
分类号:
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DOI:
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Abstract:
The water entry problem of an asymmetric wedge with roll motion was analyzed by the method of a modified Logvinovich model (MLM). The MLM is a kind of analytical model based on the Wagner method, which linearizes the free surface condition and body boundary condition. The difference is that the MLM applies a nonlinear Bernoulli equation to obtain pressure distribution, which has been proven to be helpful to enhance the accuracy of hydrodynamic loads. The Wagner condition in this paper was generalized to solve the problem of the water entry of a wedge body with rotational velocity. The comparison of wet width between the MLM and a fully nonlinear numerical approach was given, and they agree well with each other. The effect of angular velocity on the hydrodynamic loads of a wedge body was investigated.

References:

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Last Update: 2011-05-04