| 离散格式和网格数量对过渡型艇粘性阻力的影响 |
| |
| 引用本文： | 张玲,王家楣.离散格式和网格数量对过渡型艇粘性阻力的影响[J].武汉造船,2009(4):9-12. |
| |
| 作者姓名： | 张玲 王家楣 |
| |
| 作者单位： | 武汉理工大学交通学院,武汉430063 |
| |
| 基金项目： | 国家863项目（2006AA11Z223）. |
| |
| 摘 要： | 采用对比性数值分析方法研究高速气泡船减阻效果，针对某优良过渡型艇，为喷气需要预先进行断阶，不计自由面影响，采用有限体积法和SIMPLE算法，湍流模型为k-ε两方程，耦合求解N-S方程和连续性方程，数值分析不同离散格式、不同网格数量对艇体在不喷气状态下遭受的特性阻力影响。计算结果显示：二阶迎风格式比一阶迎风格式数值结果与试验结果符合较好；网格数量达到95万，计算结果与试验结果符合较好。
|
| 关 键 词： | 断阶过渡型艇 离散格式 网格数量 粘性阻力 数值计算 |
Influence of Discretization Scheme and Grid Number on Viscosity Resistance in High-speed Transitional Craft |
| |
| ZHANG Ling,WANG Jia-mei.Influence of Discretization Scheme and Grid Number on Viscosity Resistance in High-speed Transitional Craft[J].Wuhan Shipbuilding,2009(4):9-12. |
| |
| Authors: | ZHANG Ling WANG Jia-mei |
| |
| Institution: | (School of Transportation, Wuhan University of Technology, Wuhan 430063, China) |
| |
| Abstract: | The resistance reduction of high speed air cavity craft was analyzed by using contrastive numerical method. Neglecting the influences of free-surface, choosing k-ε viscous model, the Finite Volume method and SIMPLE algorithm were adopted to solve the N S equation and the continuity equation of a transitional craft with good line-type. The influence of discretization scheme and grid number on viscosity resistance without injecting air was studied numerically. The results showed that the calculation by second order upwind is more similar to towing tank test results than by first-order upwind. |
| |
| Keywords: | dam-break transitional craft discretization scheme mesh number viscosity resisitance numerical caleulation |
| 本文献已被 维普 等数据库收录！ |
