In this paper a calculation method of hydrodynamic pressure field on a ship operating off the centerline of a channel at a subcritical speed is presented.

本文给出了舰船以亚临界航速偏离航道中心运动时水压场的计算方法。

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Finally, scale space analysis method is used to refine each point in the coarse centerline in its cross-section plane. Thus, an accurate centerline is obtained.

最后，对该中心路径上的每一点，利用尺度空间分析法在其所在的管腔横截面内进行修正，最终得到一条精确的中心路径。

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