绕船体粘性自由面流动的数值计算

摘要

Only in recent years,the computational method of viscous free surface flow is being developed speedily, because of its complexity and high requirement for computer hardware.In this paper,the viscous free surface flow around Wigley hull was simulated numerically.The VOF method was used for the free surface treatment.The SST k- ω turbulence model was employed in viscous flow calculation.The wave profile along ship hull and wave contours were obtained.The flow patterns at three sections were also investigated.Comparisons were made for the calculated resistance with experimental results.This numerical calculation shows that this paper's method is effective.%考虑自由面的船舶粘性流动计算由于其复杂性和对计算机硬件的较高要求,只是到了最近几年才得到较大发展,而在国内尚属起步阶段.本文使用VOF方法计算了绕Wigley船型的粘性自由面流动,湍流模式选择了SSTk-ω模型.计算获得了船体上波形以及船波等值线图.同时考察了三个不同横截面上的流动状况.计算得到的阻力还和发表的试验结果作了对比,结果令人鼓舞.