Experimental and analytical results show that the system can be used to study the friction drag of the vehicle models at certain speed range, which full-fills the design demand.
试验和分析结果表明,该系统在一定的速度范围内可以有效地测试航行器模型所受摩擦阻力,满足了设计要求。
A testing system was designed and implemented to figure out the friction drag of an underwater axisymmetrical vehicle model.
为了研究轴对称回转体水下航行器模型所受到的壁面摩擦阻力,设计并实施了一套测试系统。
The underwater high-speed vehicle surfaces are enveloped by cavity entirely or mostly, which reduces skin friction drag and allows the vehicle to obtain high speed.
水下超高速航行体的全部或大部分表面被空泡包裹,使其阻力显着降低而达到高速航行的目的。
Research on drag reduction mechanism of supercavitation shows that supercavitation can reduce not only the friction drag coefficient but also the pressure drag coefficient.
超空泡减阻机理的研究表明:超空泡不仅可以减小回转体的摩擦阻力,还可以减小回转体的压差阻力。
Based on the achievements obtained. the theoretic formula that determine the rut size of the caterpillar tractor and the friction drag coefficient of motion was deduced.