浅水航道船舶阻力计算方法研究  

Study on Calculation Method of Ship Resistancein Shallow Water

作　　者：徐双喜[1,2] 林江萍 董威[3] 郭进涛[3] 吴卫国[1,2] XU Shuangxi;LIN JiangPing;DONG Wei;GUO JinTao;WU WeiGuo(School of Transportation, Wuhan University of Technology, Wuhan 430063, China;Key Laboratory of High-speed Ship, Ministry of Education, Wuhan 430063, China;Wuhan Ship Development & Design Institute, Wuhan 430063, China)

机构地区：[1]武汉理工大学交通学院,武汉430063 [2]高性能舰船技术教育部重点实验室,武汉430063 [3]中国舰船研究设计中心,武汉430063

出　　处：《武汉理工大学学报（交通科学与工程版）》2020年第3期414-417,422,共5页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：国家自然科学基金项目资助(51609186)。

摘　　要：浅水航道会形成局部“堵塞”现象,易引发“伯努利效应”而使起船体下沉,航行阻力增大.极浅水深航道易发生触底,单纯运用船模试验方法,测试结果的精度难控制,文中运用数值计算与模型试验相结合的方法研究浅水阻力.以漓江航道反铲式挖泥船为例,利用深水船模试验验证数值计算方法的可靠性,运用经验公式确定各航速下的下沉量,再运用数值计算方法计算计入下沉量后的航行阻力,该方法可较准确估算浅水阻力.Shallow water will form local“blocking”phenomenon,which will easily lead to“Bernoulli effect”and cause the hull to sink and cause great navigation resistance.It is easy to bottom out in very shallow water and deep channel,and it is difficult to control the accuracy of the test results by simply using the ship model test method.In this paper,numerical calculation and model test were used to study shallow water resistance.Taking the backhoe dredger in Lijiang waterway as an example,the reliability of the numerical calculation method was verified by deep-water ship model test.The empirical formula was used to determine the sinking amount at each speed,and then the numerical calculation method was adopted to calculate the navigation resistance after considering the sinking amount.This method can accurately estimate the shallow water resistance.

关 键 词：浅水航道 阻力 数值计算 船模试验 

分 类 号：U661.31[交通运输工程—船舶及航道工程]