摘要
基于计算流体软件Fluent,采用滑移网格,结合RNG湍流模型对艇体下的螺旋桨进行三维非定常湍流计算,分析螺旋桨周围压力场的变化特点,及对艇体的影响,获得螺旋桨转动一周过程中,螺旋桨轴承力的变化规律,为改进螺旋桨结构,降噪减振提供一些依据。
Based on software Fluent for fluid mechanics computation, applying sliding mesh technique and RNG model, the 3D unsteady turbulent flow near the propeller was simulated. The unsteady force of the propeller was obtained. The characteristic of pressure pulsation near the propeller and its influence on the tail of the hull were analyzed. Finally, variation of the beating force in one revolution of the propeller was obtained and analyzed. The results can be applied to the improvement of propeller structure and vibration reduction.
出处
《噪声与振动控制》
CSCD
2013年第2期49-53,共5页
Noise and Vibration Control
关键词
声学
螺旋桨
滑移网格
压力脉动
轴承力
非定常
acoustics
propeller
sliding mesh
pressure pulsation
bearing force
unsteady
