船舶阻力性能是舰船的基本水动力性能之一。
Resistance performance is one of the fundamental hydrodynamic performances of ships.
获得了螺旋桨推力系数、扭矩系数等水动力性能参数。
The hydrodynamics parameters such as the thrust coefficient and torque coefficient were obtained.
讨论了螺旋桨导边充气对其水动力性能和辐射噪声的影响。
This paper discusses the effects of air jet in the leading edge of propeller on its hydrodynamics and radial noise.
提出了一种计算带制流板舵在螺旋桨尾流中水动力性能的方法。
A new method for predicting the hydrodynamic performance of the rudder with plates behind a propeller is presented.
本文采用升力面理论预报螺旋桨非定常水动力性能及空泡性能。
This paper has adopted the lifting-surface method for the prediction of unsteady hydrodynamic performance and cavitation performance of propeller.
所以，研究如何更能准确地预报对转螺旋桨水动力性能更为重要。
So, how studies can accurately prediction to the contra-rotating propeller hydrodynamic performance is more important.
本文提出了一种鱼形舵定常升力的水动力性能预报的理论预报方法。
The theoretical calculation method about how to predict the hydrodynamic characteristics of Ichthyoid Rudder is proposed in this paper.
因此，深入地研究如何准确地预报螺旋桨的水动力性能是非常重要的。
So, an in-depth study in how to make a accurate prediction of the hydrodynamic performance of the propeller is very important.
本文提出了一种计算带制流板的鱼尾舵在螺旋桨尾流中水动力性能的方法。
The paper presents a new method for predicting the hydrodynamic performance of the shilling rudder behind a propeller.
本文的主要工作是对这两种不同的被动式竖轴水轮机的水动力性能进行数值模拟。
In this thesis, the main content is the prediction of hydrodynamic performance of these two kinds of turbines with numerical calculation methods.
这两方面的研究与国外有一定的差距，特别是船、桨水动力性能的研究几乎是空白。
The improvement of sport skill and hydrodynamic performance of the both of boats and oars is the key.
本文提出拖式吊舱螺旋桨(螺旋桨位于吊舱首部)定常水动力性能的势流理论计算方法。
A numerical method based on the potential flow theory is proposed in this paper for predicting the steady performance of tractor-type podded propellers.
用面元法对吊舱螺旋桨的水动力性能进行了计算，得到了吊舱推进器的敞水曲线和轴承力。
The hydrodynamic performance of podded propeller is calculated, including the open water characteristics and bearing force.
应用升力面理论涡格法和面元法，建立了拖式吊舱推进器非定常水动力性能的数值计算方法。
Based on potential flow theory, a numerical method is proposed for predicting the steady and unsteady hydrodynamic performances of puller type podded propulsors.
为了预报毂帽鳍的水动力性能，采用计算流体力学软件对粘性流场中毂帽鳍的敞水性能进行计算研究。
In order to predict the hydrodynamic performance of propeller with boss cap fins, CFD software was used to calculate the its open water performance.
该文应用低阶速度势面元法建立了预报三维水翼水动力性能的数值方法，重点对翼梢和尾涡进行了研究。
A potential-based surface panel method is applied to predicting the performance for three-dimensional hydrofoils, with emphasis on the tip region.
实例计算结果表明本方法是可靠和有效的，在螺旋桨水动力性能预报和压力分布等方面的计算是非常成功的。
Present method is reliable and effective by the calculation results. It is very successful in the calculation of the pressures and hydrodynamic performance of the propeller in unsteady condition.
通过对长方体和椭球这些规则形状物体水动力性能的计算和比较，反映了浮体对邻近潜体的水动力干扰作用。
Hydrodynamic performance of some regular shape structures like box and spheroid are calculated to investigate disturbing effect on submerged bodies from adjacent floating structure.
为了分析鳍对吊舱推进器水动力性能的影响，用基于速度势的低阶面元法预报附鳍吊舱推进器的定常水动力性能。
In order to analyze the influence of fins, a low-order panel method based on velocity potential was used to predict the steady hydrodynamic performance of a podded propeller with fins.
减压情况下，通过既改变空泡数又改变浸深比的多方案螺旋桨水动力性能试验来建立和完善半浸桨空化性能试验技术。
In depressurized condition, multi-scheme experiments of propeller hydrodynamics performance have also been accomplished under different number of cavity and ratio of submergence.
本论文的研究为高阶面元法预报螺旋桨的水动力性能打下了一定的基础，对进一步提高面元法预报的精度具有一定的实用意义。
This research is useful in predicting of the hydrodynamic performance and in enhancing the prediction precision of the propeller by using High-Order Surface Panel Method.
本文分析了盘面比、叶数、整体螺距角、周期螺距角、纵倾角、叶剖面形状等主要参数的变化对全方向推进器水动力性能的影响。
Analyze the influence of main parameters including exp. area ratio, blade number, collective pitch angle, section shape, cyclic pitch angle and rake angle on the performance of VVP.
BP人工神经网络模型通过训练可以具备强大的非线性映射能力，以数学解析的形式，较好地提取了海量螺旋桨水动力性能数据特征；
Through trained, BP neural network can obtain strong nonlinear mapping ability to learn the data characteristics of the hydrodynamic performance of ship propeller as a mathematic analytic form.
采用计算流体动力学(CFD)技术实现在船舶设计阶段对船舶水动力性能的精确预报，是船舶水动力学学科中一个具有重大理论和实用意义的、富有挑战性的课题。
Numerical prediction of ship hydrodynamic performance at design stage using computational fluid dynamics (CFD) technique is a most important and challenging subject in the field of ship hydrodynamics.
然而，为改进其水动力学性能和促进其实用化，尚有一些问题需要解决，例如有关三体船构型与阻力性能的关系。
There, however, are still some problems to be tackled to improve its hydrodynamic performances and promote its practical use, such as the relation between the configuration and its resistance.
本文主要是基于二维半理论预报船舶在波浪上的水动力特征及运动性能。
This paper presents a method for predicting the hydrodynamic property and motion characteristics of high-speed displacement ship based on 2.
因此求取潜水器的水动力成为操纵性能分析的关键。
Therefore, calculating the hydrodynamic coefficients becomes the focus of the analysis of maneuverability performance.
该萃取体系具有较快的反应动力学，锶浓度对萃取没有很大的影响。体系具有良好的反萃性能，可用去离子水作为反萃剂。
The results show that this extraction system has good dynamics, stronium concentration do not affect the distribution of stronium, water is a good strippingagent.
该萃取体系具有较快的反应动力学，锶浓度对萃取没有很大的影响。体系具有良好的反萃性能，可用去离子水作为反萃剂。
The results show that this extraction system has good dynamics, stronium concentration do not affect the distribution of stronium, water is a good strippingagent.
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