海面梯度风下一种翼型风帆的数值计算  

Numerical simulation of wing sail in gradient wind condition

作　　者：杨亦霖[1] 陈威[1] 胡以怀[1] 

机构地区：[1]上海海事大学商船学院,上海200135

出　　处：《船舶》2011年第6期6-8,13,共4页Ship & Boat

基　　金：上海市自然科学基金(08ZR1409100);上海科委重点项目(08210511800)

摘　　要：引入一种近海面梯度风场的计算方法 ,通过Spalart-Allmaras湍流模型求解三维不可压流体的N-S方程,计算近海面风场实际分布下一种翼型风帆的气动表现。比较了定值风速气动特性与梯度风表观气动特性的升阻比,同时讨论了在所述条件下,应用定值风速气动特性分析海面实际风场下风帆表现引起的误差。By introducing a kind of computational method of offshore gradient wind field,this paper simulated the three dimensional incompressible flow by solving the N-S equation with the Spalart-Allmaras turbulence model. The aerodynamic performance of the wing sail in the real offshore gradient wind condition was calculated and compared to those with constant wind speed condition, the errors were discussed.

关 键 词：翼型风帆 梯度风 气动系数 

分 类 号：TU312.1[建筑科学—结构工程]