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首页> 外文期刊>International Journal of Naval Architecture and Ocean Engineering >Investigation on the wall function implementation for the prediction of ship resistance
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Investigation on the wall function implementation for the prediction of ship resistance

机译:预测船舶阻力的墙函数实现研究

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ABSTRACT A computational fluid dynamics (CFD) code, dubbed SNUFOAM, was developed to predict the performance of ship resistance using a CFD tool kit with open source libraries. SNUFOAM is based on a pressure-based cell-centered finite volume method and includes a turbulence model with wall functions. The mesh sensitivity, such as the skewness and aspect ratio, was evaluated for the convergence. Two wall functions were tested to solve the turbulent flow around a ship, and the one without the assumption of the equilibrium state between turbulent production and dissipation in the log law layer was selected. The turbulent flow around a ship simulated using SNUFOAM was compared to that by a commercial CFD code, FLUENT. SNUFOAM showed the nearly same results as FLUENT and proved to be an alternative to commercial CFD codes for the prediction of ship resistance performance.
机译:摘要开发了一个名为SNUFOAM的计算流体动力学(CFD)代码,以使用带有开放源代码库的CFD工具包来预测船舶抵抗性能。 SNUFOAM基于基于压力的以单元为中心的有限体积方法,并且包括具有壁函数的湍流模型。对网格敏感度(例如偏度和长宽比)进行了收敛性评估。测试了两个壁函数以解决船舶周围的湍流,并选择了一个不假设对数律层中湍流产生与耗散之间处于平衡状态的函数。使用SNUFOAM模拟的船舶周围的湍流与商用CFD代码FLUENT进行了比较。 SNUFOAM显示出与FLUENT几乎相同的结果,并被证明是商业CFD代码的替代品,可用来预测船舶的阻力性能。

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