CAJ | 학술논문

文章采用面元法计算带定子导管螺旋桨的水动力性能,考虑到定子和导管都为静止部件,计算时,将定子和导管当作一个整体,即定子与导管的速度势在同一矩阵下求解,桨与定子—导管之间的相互干扰通过诱导速度的迭代实现.计算表明,该方法与试验值吻合良好,与传统的将桨、导管和定子三者通过诱导速度迭代分别计算这种方法相比,精度相似,但是,前者的计算速度较后者提高数倍.
문장채용면원법계산대정자도관라선장적수동력성능,고필도정자화도관도위정지부건,계산시,장정자화도관당작일개정체,즉정자여도관적속도세재동일구진하구해,장여정자—도관지간적상호간우통과유도속도적질대실현.계산표명,해방법여시험치문합량호,여전통적장장、도관화정자삼자통과유도속도질대분별계산저충방법상비,정도상사,단시,전자적계산속도교후자제고수배.
A new numerical method based on surface panel method was developed for predicting the steady hydrodynamic performance of ducted propeller with stators.During the calculation,the duct and stators were considered as a whole as they were motionless,and the potential on the duct and stators was solved in one matrix.The interaction between propeller and duct-stator system was computed by induced velocity iteration.Numerical results for a ducted propeller with stators show that this method agrees well with the experimental results.Compared with the traditional method that duct and stators are computed separately by the iterative induced velocity,the method presents the similar accuracy and could save much calculation time.