不对称流动对航道中航行船舶的影响(英文)

Effects of Unsymmetric Flow on a Ship Traveling in a Channel

A modified Dawson's method that deals with asymmetric free-surface flow is applied to investigate the effect of the channel walls and water depth on the hydrodynamics of a ship running off the eenterline of a restricted waterway. The comparison of the numerical results with the experimental results shows that the method and the computer program are valid to predict the hydrodynamic forces and ship waves when the under keel clearance is not extremely small.The numerical results also demonstrate how the flow and pressure vary unsymmetriely on both sides of the ship and how the water depth and bank distance influence the hydrodynamic forces and ship waves.

A modified Dawson's method that deals with asymmetric free-surface flow is applied to investigate the effect of the channel walls and water depth on the hydrodynamics of a ship running off the centerline of a restricted waterway. The comparison of the numerical results with the experimental results shows that the method and the computer program are valid to predict the hydrodynamic forces and ship waves when the under keel clearance is not extremely small.The numerical results also demonstrate how the flow and pressure vary unsymmetricly on both sides of the ship and how the water depth and bank distance influence the hydrodynamic forces and ship waves.