CSSRC的螺旋桨定常面元法

中国船舶科学研究中心(CSSRC)从八十年代至九十年代一直在发展螺旋桨、导管螺旋桨的定常、非定常面元法,现已在为工业服务中作为日常的计算工具,取得了非常满意的结果.本文将CSSRC过去的研究成果作一系统的归纳整理,供今后使用者参考.文中详细介绍了面元法的理论基础、网格划分、Kutta条件的实施等求解过程.同时还系统地进行了数值试验分析,使应用程序进一步规范化.对面元法对网格数的依赖性、收敛性进行了研究,提出了建议的网格数.通过对多个实例产品的计算,表明与试验结果相比误差可在3%以内,可较好地满足工程应用的目的.

Panel method of CSSRC for propeller in steady flows

During 1980's to 1990's,China Ship Scientific Research Center(CSSRC) kept developing and improving surface panel methods for propeller and ducted propeller at steady and unsteady condition.The methods were as the routine tools and with satisfying applications to performance prediction of those propulsors for engineering purpose.This paper sums up CSSRC's work done for steady case in this aspect.The authors unified the application process of the methods and present it.The paper described in details the theoretical foundation,the grid generation process,the treatment of Kutta condition as well as the numerical tests of the method.The numerical tests investigated the dependence of the results on the number of panels and the convergence of the results.Based on the numerical tests,reasonable paneling is suggested.A number of examples and the calculated results comparing with test data are presented.It shows that the error can be within 3% and the method can be satisfactorily used for engineering applications.This paper also can serve as the theoretical explanations to the surface panel method code of CSSRC.