摘要
在中国船舶科学研究中心拖曳水池中 ,通过滑行艇模型自航试验 ,研究了艇底气层对滑行艇推进性能的影响 ,结果表明 :气层对采用水螺旋桨推进的滑行艇推进性能的影响不大。由于气层影响 ,当滑行艇处于过渡状态时 ,推进效率略有增大 ;当滑行艇处于滑行状态时 ,推进效率略有减少。在饱和气流量时 ,阻力及主机功率最大减幅可达20%。
The effect of bubbly layer on propulsion performance of planing craft is investigated by means of self-propelled model experiment in the towing tank of China Ship Scientific Research Center.The results show that bubbly layer has small effect on propulsion performance of planing craft model propelled by water skew propeller.Because of the existence of bubbly layer,the propulsive efficiency increases a little bit when the model is in pre-planing state,decreases a little bit when the model is in planing state.Both the resistance reduction rate and the engine power reduction rate are reached up to 20% at saturated air flow rate.
出处
《船舶力学》
EI
2002年第6期62-69,共8页
Journal of Ship Mechanics
关键词
气层
滑行艇
试验研究
推进性能
减阻
自航模型试验
planing craft
propulsion performance
bubbly layer
resistance reduction
self- propelled model test
