摘要
通过模型试验的方法研究了管道输送加气减阻的机理,分析了影响减阻效果的因素,进行了延长排距的计算,利用模型试验研究的结果进行了实船试验。研究表明,在绞吸式挖泥船的排泥管中加入适当压力和一定体积分数的气体,可以降低管道输送阻力和延长排距。
The mechanism of drag reduction by ejecting compressed air into pipeline is analyzed. The factors affecting drag reduction are researched in the model test, and the effect on pipeline transportation is deduced. It is found that, by ejecting compressed air to clredger pipeline, the transport resistance can be reduced and the discharge distance of pipeline transportation can be extended.
出处
《武汉科技大学学报》
CAS
2009年第1期98-101,共4页
Journal of Wuhan University of Science and Technology
基金
湖北省教育厅科研基金资助项目(B200611007)
关键词
管道
加气输送
减阻
排距
挖泥船
pipeline
air ejection for easy transportation
drag reduction
discharge distance
dredger
