船池形式对下水式升船机船厢出水过程水动力特性的影响

摘要

This paper establishes a physical generalized model of submerge ship chamber ship lift with scale of 1:20 to study the impact of chamber tank area and ship chamber' s velocity to hydrodynamic characteristics of the submerge ship chamber ship lift in the process of ship chamber rising from water.The results show that the increase of β( the ratio of the difference between the area of chamber and chamber tank to the area of chamber) can lower the value of start-up force, and the maximum gradient of water surface in approach channel, also make mooring conditions of ship chamber better.Considering the data for ship chamber falling into water and actual engineering, the recommended β is 1. 24.%通过比尺为1:20的船厢出入水物理模型,系统研究船池面积和船厢出水速度对下水式升船机船厢出水水动力特性的影响.结果表明:船池与船厢间隙面积与船厢面积比β的增大可有效降低船厢出水启动力、 引航道内水面最大坡降,改善船池内船厢停泊条件;结合船厢入水过程水动力特性以及工程实际,建议船池与船厢间隙面积与船厢面积的最佳比值β为1.24.