摘要
以棱柱型滑行艇为研究对象,开展了滑行艇在高速滑行状态下喷溅区面积及驻点位置变化特征的模型试验研究.模型纵倾角为1.5°,2.2°,3.0°,5.0°,每个纵倾角对应两种尾吃水,分别为37.3,27.3,58.0,38.0,58.0,48.0,73.0,53.0mm,航速为1-5 m/s.艇体喷溅区的流场变化采用高速摄像机拍摄,确定了喷溅区面积和驻点位置的变化规律.结果表明：喷溅区面积与滑行艇纵倾角、吃水及航速密切相关,高速滑行状态下,喷溅区面积随航速的增加而增加,喷溅区面积占滑行面面积的比值为30%-45%;驻点位置随航速的增加向船尾移动,移动距离占船长之比为7.14%-14.28%.
Taking the prismatic planning craft as the research object,we carried out the model test research on spray zone area and the stagnation point position variation characteristics of the planning craft at high speed. The trim angle of the model was chosen to be 1. 5 °,2. 2 °,3. 0 ° and 5. 0 °,each corresponding to tail draft of two values： 37. 3,27. 3,58. 0,38. 0,58. 0,48. 0,73. 0,73. 0 mm,and the ship model was tested at a speed of 1 - 5 m / s.The change of flow field in spray zone was photographed with the high-speed camera,and the spray zone area and stagnation point position were determined. The results showed that the spray zone area closely relates to the trim angle,draft and speed. When the planning craft is at a high speed,the spray area increases with the speed and it accounts for 30% - 45% of the sliding surface area; with the increase of velocity,the stagnation point position moves to the stern,and the percent of the shifting distance in the ship length is 7. 14% - 14. 28%.
出处
《江苏科技大学学报（自然科学版）》
CAS
北大核心
2015年第3期205-209,共5页
Journal of Jiangsu University of Science and Technology:Natural Science Edition
基金
国家自然科学基金资助项目(51279070)
江苏省高校自然科学重大基础研究基金资助项目(12KJA_580001)
关键词
滑行艇
喷溅区面积
驻点
模型试验
planning craft
spray area
stagnation point
model test
