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首页> 外文期刊>Journal of Computational Physics >A LARGE-DOMAIN APPROACH FOR CALCULATING SHIP BOUNDARY LAYERS AND WAKES AND WAVE FIELDS FOR NONZERO FROUDE NUMBER
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A LARGE-DOMAIN APPROACH FOR CALCULATING SHIP BOUNDARY LAYERS AND WAKES AND WAVE FIELDS FOR NONZERO FROUDE NUMBER

机译：计算Nonzero弗劳德数的船舶边界层和尾迹及波场的大域方法

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A large-domain approach is developed for calculating ship boundary layers and wakes and wave fields for nonzero Froude number. The Reynolds-averaged Navier-Stokes and continuity equations are solved with the Baldwin-Lomax turbulence model, exact nonlinear kinematic and approximate dynamic free-surface boundary conditions, and a body/free-surface conforming grid. The results are validated through comparisons with data for the Series 60 C-B = 0.6 ship model at low and high Froude numbers and results of a precursory interactive approach. Both approaches yield satisfactory results; however, the large-domain results indicate improved resolution of the flow close to the hull and wake centerplane and of the Froude number differences due to near-wall turbulence modeling and nonlinear free-surface boundary conditions. Additional evaluation is provided through discussion of the recent CFD Workshop Tokyo 1994, where both methods were among the best. Last, some concluding remarks are made. (C) 1996 Academic Press, Inc. [References: 20]
机译：开发了一种大域方法来计算非零弗劳德数的船舶边界层，尾波和波场。用鲍德温-洛马克斯湍流模型，精确的非线性运动学和近似动态自由表面边界条件以及体/自由表面符合网格，求解了雷诺平均的Navier-Stokes和连续性方程。通过与在低和高弗劳德数下的60 C-B = 0.6系列船舶模型的数据进行比较，并通过先验交互式方法的结果，对结果进行了验证。两种方法均产生令人满意的结果。然而，大范围的结果表明，由于近壁湍流建模和非线性自由表面边界条件的影响，靠近船体和尾流中心平面的流的分辨率提高了，并且弗洛德数差得到了改善。通过对最近的1994年东京CFD研讨会的讨论提供了额外的评估，在这两种方法中都是最好的。最后，作一些总结。 （C）1996 Academic Press，Inc. [参考：20]

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