摘要
针对两栖车辆水上行驶时不同滑板角度组合对车体升阻比的影响问题,阐述了滑板滑行机理,并基于RANS方程和RNG k-ε湍流模型等计算流体动力学(CFD)理论,提出采用FLUENT和正交分析法进行某两栖车辆车体模型静水航行的三维数值模拟及优化分析。分析了两栖车辆在不同滑板角度组合和不同速度下的阻力和升力特性,得出了两栖车辆升阻比的最优滑板角度组合范围,为两栖车辆的设计及优化进行了有益而深入的探索。
For the effects of different skateboard angles on lift-drag ratio of amphibious vehicle, the paperexplains the sliding mechanism of the skateboard. Based on computational fluid dynamics （CFD） theory such asRANS equation and RNG k-ε turbulence mode, the 3D numerical simulation and optimization analysis of theamphibious vehicle model in static sailing are done by FLUENT and orthogonal analysis. The drag and liftcharacteristics of the amphibious vehicle at different skateboard angles and speeds is analyzed. The bestskateboard angles for the ideal lift-drag ratio range are drawn out, which is good and further exploration for thedesign and optimization of amphibious vehicles.
出处
《船舶工程》
北大核心
2015年第3期26-29,共4页
Ship Engineering
关键词
两栖车辆
滑板角度组合
正交分析法
升阻比
amphibious vehicle
skateboard angles
orthogonal analysis
lift-drag ratio
