Experimental Study On Correlation Between Yangtze River Artificial Waterway And 10000-ton Ship

The Yangtze River is the main artery of East-West water transport in China.With the policy of "one belt and one road" and the construction of the Yangtze River golden waterway,the ship has a large-scale development trend.Meanwhile,the problem of "middle obstruction" in the Yangtze River is becoming increasingly prominent.Therefore,the construction of large artificial waterway in the middle reaches of the Yangtze River has been put on the agenda.The proposed artificial waterway adopts inclined bank wall,which limits the width and depth of waterway.As far as 10,000-ton ships are concerned,the Yangtze River artificial waterway belongs to the limited waters with small cross-section coefficient.The navigation state of 10,000-ton ships sailing in the artificial waterway is quite different from that in the infinite waters.The correlation between the constructed Yangtze River artificial waterway and 10,000-ton ships needs to be studied urgently.At present,the research methods for the correlation between navigation channel and ship navigation performance mainly include theoretical analysis,experimental research,numerical simulation,etc.The research results are mostly for ships with higher Froude number,generally more than 0.2.The future 10,000-ton ships has a lower Froude number,generally less than 0.2.The existing ship navigation performance prediction models are mainly aimed at wider waters,while the Yangtze River artificial waterway to be built belongs to the limited waters with small cross-section coefficients.At present,there is no applicable research results,so it is necessary to carry out targeted research.Therefore,based on theoretical analysis and previous numerical calculation results,this paper focuses on the top-level design of correlation model experiment between artificial waterway and 10,000-ton ship,explores the interaction between artificial waterway and 10,000-ton ship.Then carries out numerical calculation model based on model experiment,explores scale effect,and finally constructs the key correlation prediction model between artificial waterway and 10,000-ton ship of the Yangtze River.The research results of this paper can provide a useful reference for the selection of artificial waterway scale in the Yangtze River and the safe navigation of ships in coordination with the artificial waterway.This paper first expounds the background,purpose and significance of the research,and analyzes the research status at home and abroad.Secondly,combined with theoretical analysis and preliminary numerical calculation results,the top-level design of the correlation experiment between the Yangtze River artificial waterway and the 10,000-ton ship is carried out,and the experiment object,experiment index,variable,basic experiment method and implementation method are determined.The control variable method is used to complete the typical working condition model experiment,and the interaction relationship between the Yangtze River artificial waterway and the 10,000-ton ship is discussed.Then,the computational fluid dynamics method is used to carry out the numerical simulation of various scale models under multiple working conditions.Finally,combined with the model experiment and numerical calculation results,the scale effect is explored.The correlation prediction model between the artificial waterway and the navigable ship is constructed,and the validity of the model is verified.