Study on the flow field uniformity of hydro-floating ship lift combined type hydraulic-driven system based on the residual energy theory  

作　　者：Bo Wu Ya-an Hu Shu Xue 

机构地区：[1]State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University,Wuhan,430072,China [2]State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering,Nanjing Hydraulic Research Institute,Nanjing,210029,China [3]Key Laboratory of Transport Technology in Navigation Building Construction,Nanjing Hydraulic Research Institute,Nanjing,210029,China

出　　处：《Journal of Hydrodynamics》2022年第6期1156-1161,共6页水动力学研究与进展B辑（英文版）

摘　　要：The hydro-floating ship lift originally invented in China is a major innovation in the field of navigation technology.The shaft water levels synchronization of its unique hydraulic-driven system plays a crucial role in reducing the torque of the synchronous shafts and ensuring the safety and stability operation of the ship lift.This study aims to investigate the muti-shaft water level synchronization and the flow velocity uniformity of the combined type hydraulic-driven system.Based on the theory of residual energy,a new index m2 proposed in this study is more suitable for evaluating the flow velocity uniformity of the combined hydraulic-driven system.Finally,the critical value of m2=75 is calculated via the results of the scaled physical mode test as the threshold of water flow uniformity,and it provides a basis for determining the reasonable height of the pressure stabilizing chamber.

关 键 词：Hydro-floating ship lift water levels synchronism residual energy velocity distribution uniformity coefficient 

分 类 号：O361.3[理学—流体力学]