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- In this thesis ,the steady performance of ducted propeller in uniform flow is predicted by surface panel method. 本文应用基于扰动速度势的低阶面元法，拟计算导管螺旋桨在均匀流场中的定常水动力性能。
- In this thesis, the stead hydrodynamic performance of ducted propeller in uniform flow is predicted by lifting-surface method and surface panel method. 本文应用基于扰动速度势的面元法和升力面理论的耦合方法，计算导管螺旋桨在均匀流场中的定常水动力性能。
- A theoretical method for predicting the steady/unsteady performance of ducted propeller is presented,in which an unsteady panel method is applied both for the duct and propeller. 本文提供了一个计算导管螺旋桨的定常及非定常性能的基于速度势的非定常面元法,桨和导管的相互影响是通过在时域范围内迭代计算处理。
- The numerical results obtained by present method show that the proposed method is effective for predicting the steady/unsteady performance of ducted propeller. 算例计算结果表明，本方法可以有效地应用于导管桨的定常及非定常性能的预估。
- In order to inquire into the inner velocity field of ducted propeller, the windows were set inside the duct of a ducted propeller, which allowed optical access for LDV measurements. 摘要为了探讨导管内流场，通过在导管壁上开窗口，使用LDV激光穿过窗口方案来测量导管螺旋桨的内流场。
- exit vane in rear of ducted propeller 桨后整流支架
- The new pushboat proposed is very much different from that with a conventional cochlea-channeled-stern and it is fitted with forward rudders + ducted propellers + backing rudders system. 对蜗尾型双桨推轮首次进行了线型研究和模型试验研究,给出了一种与常规蜗尾有很大差别、与正车舵+导管桨+倒车舵系统有良好匹配性能的新的蜗尾型推轮。
- A Potential Based Panel Method for Prediction of Steady Performance of Ducted Propeller 导管螺旋桨定常性能预估的基于速度势的面元法
- England is an advanced industrial country. 英国是一个发达的工业国家。
- The France is one of advanced country. 法国是发达国家之一。
- Some of them are engaged in advanced studies. 他们有些人在进行高级研究工作。
- The ancient Egyptians had advanced civilization. 古埃及人曾经拥有高度文明。
- Her actions sorted well with her advanced thought. 她的行为与她的先进思想相符。
- The professor is engaged in advanced studies. 该教授正进行高深的学术研究。
- Last year he was chosen to attend a conference of advanced workers. 去年他被推选出席了先进工作者会议。
- Forestry has advanced with exceptional speed. 植树造林以罕见的速度得到了发展。
- She is the farthest advanced of all my students. 她是我所有学生中学习最好的。
- Carrying down or away. Used of a duct or vessel. 传送的指通过导管或管道传送下来的或输送的
- Rice has advanced fifteen cents a pound. 米一磅涨了一角五分。
- His grandfather died at an advanced age of 98. 他祖父在九十八岁高龄时去世。
