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首页> 外文期刊>International journal of computational methods >URANS Studies of Effect of Eccentricity on Ship-Lock Interactions
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URANS Studies of Effect of Eccentricity on Ship-Lock Interactions

机译：URANS研究偏心率对船闸相互作用的影响

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摘要

The unsteady viscous flow around a 12000TEU ship model entering the Third Set of Panama Locks with different eccentricity is simulated by solving the unsteady Reynolds averaged Navier-Stokes (RANS) equations in combination with the k-omega SST turbulence model. Overset grid technology is utilized to maintain grid orthogonality and the effects of the free surface are taken into account. The hydrodynamic forces, vertical displacement as well as surface pressure distribution are predicted and analyzed. First, a benchmark test case is designed to validate the capability of the present methods in the prediction of the viscous flow around the ship when maneuvering into the lock. The accumulation of water in front of the ship during entry into a lock is noticed. A set of systematic computations with different eccentricity are then carried out to examine the effect of eccentricity on the ship-lock hydrodynamic interaction.
机译：通过求解非稳态雷诺平均Navier-Stokes（RANS）方程与k-omega SST湍流模型相结合，模拟了进入不同偏心率的第三套巴拿马船闸的12000TEU船舶模型周围的非稳态粘性流。覆盖栅格技术用于保持栅格正交性，并考虑了自由表面的影响。预测和分析了流体动力，垂直位移以及表面压力分布。首先，设计基准测试用例以验证本方法在操纵进入船闸时在船周围的粘性流动的预测中的能力。注意到进入船闸期间船前积水。然后，进行了一组具有不同偏心率的系统计算，以检验偏心率对船闸流体动力相互作用的影响。

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