影响滑行艇阻力数值计算的网格因素研究  

Research on Grid Factor in Numerical Calculation of Planing Craft Resistance

作　　者：孙华伟[1] 马伟佳[2] 朱江波[3] 

机构地区：[1]中国航空工业空气动力研究院气动发展部,哈尔滨150001 [2]哈尔滨工程大学船舶工程学院,哈尔滨150001 [3]中国舰船研究设计中心,上海201108

出　　处：《中国造船》2015年第2期170-178,共9页Shipbuilding of China

基　　金：国家自然科学基金(51409069);黑龙江省自然科学基金(A201406);教育部博士点学科专项-基金(20132304120011)

摘　　要：为了获得有效的滑行艇阻力数值计算方法,采用粘性流体力学软件STAR CCM+,根据结构网格特点分别探讨了船体表面第一层网格节点高度、船体表面网格尺度以及流域网格节点分布系数三个因素对滑行艇阻力计算精度、收敛速度以及计算稳定性的影响。通过把不同网格划分方法所得到的数值结果与模型试验结果进行比较,确定了适合滑行艇阻力计算的网格参数。利用得到的网格方案对多种航态滑行艇阻力进行计算,计算结果与试验值的符合情况良好。Viscous fluid dynamics software STAR CCM＋ was applied in calculation of planing craft resistance. According to the features of the structured grids, three factors are exploited：height of first layer grid node, grid size on hull surface, and distribution coefficient of grid nodes, which may influence the accuracy of drag simulation, rate of convergence and calculation stability. Various numerical results with different mesh parameters are compared with model test results, and then suitable grid parameters are determined. With this grid scheme the resistance of planning craft in various navigation states is calculated, and the calculation is in good agreement with the test.

关 键 词：滑行艇 阻力 CFD 网格 

分 类 号：U661.32[交通运输工程—船舶及航道工程]