防浪板对两栖车航行特性影响的研究

基于实验结果,文中采用数值模拟方法研究了防浪板对两栖车航行阻力特性的影响.结合k-ω湍流模型与多相流模型,对不加装防浪板、加装防浪板以及加装新型防浪板的两栖车的水上航行性能进行了数值模拟分析.研究结果表明,均相流模型与k-ω湍流模型相结合,能够很好地模拟两栖车水上航行阻力特性;防浪板能够有效地降低两栖车所受阻力,合理的防浪板结构最大减阻效率可达40%;并且,防浪板能够有效提高两栖车航行时的稳定性.

Influence of Breakwaters on Sailing Characteristics of an Amphibious Vehicle

Based on the experimental results, the influence of its breakwater on the sailing resistance of an amphibious vehicle is discussed by use ofthenumerical simulation. Combining thek-comodel with the Muhiphase Fluid Model, the navigation performanceis analyzed respectively on the conditions of the amphibious vehicle without a breakwater, with a breakwater or with a new-type breakwater. The the vehicle canbe effectively reduced with a breakwater, that a 40% resistance reduction can be reached with a reasonable breakwaterstructure, and that the navigating stability ofthe vehiclecan be improved with such a breakwater.