基于多域拼接网格技术的艇桨自航数值计算方法  

Numerical Calculation Method of Submarine Propeller Self-propulsion Based on Multi-domain Stitching Grid Technique

作　　者：马小刚 胡小菲[3] 何朋朋 贺伟[1,2] MA Xiaogang;HU Xiaofei;HE Pengpeng;HE Wei(Key Laboratory of High Performance Ship Technology of Ministry of Education,Wuhan University of Technology,Wuhan 430063,China;School of Naval Architecture,Ocean and Energy Power Engineering,Wuhan University of Technology,Wuhan 430063,China;China Ship Development and Design Center,Wuhan 430064,China)

机构地区：[1]武汉理工大学高性能船舶技术教育部重点实验室,武汉430063 [2]武汉理工大学船海与能源动力工程学院,武汉430063 [3]中国舰船研究设计中心,武汉430064

出　　处：《武汉理工大学学报（交通科学与工程版）》2024年第2期272-278,共7页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：国家自然科学基金重点国际合作研究项目(51720105011)。

摘　　要：基于多域拼接网格技术,采用RANS方法并结合滑移网格技术,建立艇桨自航数值计算方法.以标准SUBOFF全附体模型和INSEAN E1619螺旋桨为研究对象,采用多域拼接网格技术分别生成多套艇体阻力以及螺旋桨敞水性能计算网格,开展了网格收敛性与有效性分析.通过将不同密度的艇体阻力计算外域网格与螺旋桨敞水性能计算旋转内域网格进行拼接组成三套艇桨自航数值计算网格,完成了艇桨自航数值计算的网格收敛性分析.采用所建立数值方法计算了艇桨模型在不同航速下的自航因子,并与文献结果进行了比较.结果表明:伴流分数与相对旋转效率的计算误差在4%以内,推力减额的计算误差在8%以内.该方法克服了艇桨自航数值计算时需要完全重新划分网格的弊端,保证了艇桨自航数值计算与艇体阻力、螺旋桨敞水性能数值计算网格的一致性.Based on multi-domain mosaic grid technology,a numerical calculation method of propeller self-propulsion was established by using RANS method and sliding mesh technology.Taking the standard SUBOFF full-appendage model and INSEAN E1619 propeller as the research objects,the multi-domain splicing mesh technology was used to generate several sets of calculation mesh for hull resistance and propeller open water performance respectively,and the convergence and effectiveness of the grids were analyzed.Three sets of numerical calculation mesh of propeller self-propulsion are formed by splicing the external mesh of hull resistance calculation with different densities and the rotating internal mesh of propeller open water performance calculation,and the mesh convergence analysis of numerical calculation of propeller self-propulsion was completed.The self-propelled factors of the propeller model at different speeds were calculated by using the established numerical method,and compared with the results in the literature.The results show that the calculation error of wake fraction and relative rotation efficiency is within 4%,and the calculation error of thrust reduction is within 8%.This method overcomes the disadvantage of completely remeshing the mesh in the numerical calculation of propeller self-propulsion,ensures the consistency between the numerical calculation of propeller self-propulsion and the numerical calculation mesh of hull resistance and propeller open water performance,and is helpful to improve the calculation efficiency and accuracy of numerical prediction of propeller self-propulsion performance.

关 键 词：网格拼接 SUBOFF艇 E1619螺旋桨 涡旋结构 自航特性 

分 类 号：U664.31[交通运输工程—船舶及航道工程]