English translation for "lifting-surface"
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- 升力面理论
Related Translations:
lift: vt.1.举起，使升起，提起，抬起；提高；提升。2.使高尚；鼓舞。3.运送，搬运；空运 ( ＝ airlift).4.偷窃；偷去；抄袭，剽窃。5.起出，拔起；掘出；拔营。6.(把板球等)向高空击去。7.〔美国〕清偿；赎出，赎取(典押物)。8.解除，撤除，撤消。 lift that parcel down the shelf 把那包东西从架上拿下来。 lift weights
- Example Sentences:
| 1. | Numerical lifting - surface theory has been developed as a practical tool in predicting marine propeller ' s hydrodynamic performance because it is easily being computed and accurate for application
升力面理论由于方法简单易行，它可以对螺旋桨的水动力性能作出非常准确的预报，是当前求解螺旋桨的水动力性能有力的分析工具。 | | 2. | In the second part , firstly , the mathematical model for predicting hydrodynamic characteristics of varivec propeller under steady or unsteady condition are present , based on the general propeller lifting - surface theory , potential flow theory and green theorem . then , theoretical calculation methods for predicting hydrodynamic characteristics of varivec propeller designed above paragraphs are present , based on the finite basic solution method , the unsteady vortex lattice method and hess - smith method
在理论计算部分，本文首先基于常规螺旋桨升力面理论、势流理论和格林定理建立了定常和非定常状态下全方向推进器水动力性能计算的数学模型，然后利用有限基本解法、非定常涡格法和赫斯?史密斯方法对全方向推进器定常和非定常状态下的数学模型进行了数值离散，接下来针对前面所设计的全方位推进器进行了数值预报。 | | 3. | The paper has improved the existing lifting - line and lifting - surface design method by including the rake and skew and solving the optimum circulation distribution with the optimum theory . the blade geometry is expressed with b - spline for the lift - surface method . the boundary condition on the blade is transformed to minimize the summation of the square of normal velocities , the fair blade geometry can be obtained by present technique and the design quality is better
改进了现有的升力线和升力面设计方法，在升力线设计中计及桨叶的纵倾和侧斜的影响，用优化理论求解最佳环量分布，升力面设计中用b样条来拟合桨叶，将物面边界条件转化为求法向速度分量的平方最小，由此可得到光顺的桨叶几何形状，提高和改进了设计质量。 | | 4. | In lifting - surface theory , the non - liner phenomena of the trailing vortex in the transition wake area and of the tip vortex separation are considered . in surface panel method hyperboloidal quadrilateral panels are employed and the morino ' s analytical formulation is used to determine the influence coefficients . the more reasonable pressure kutta condition is satisfied at the trailing edge of propeller blade
在计算中，对于升力面理论，本论文考虑了过渡区尾涡收缩和叶梢分离的非线型现象的影响；对于面元法，本论文采用的是计算较为简便的基于扰动速度势的基本公式及双曲面形状的面元，在桨叶随边满足更趋合理的压力kutta条件，并用morino导出的解析公式计算面元的影响系数的快速有效的数值预报方法。 | | 5. | Based on the theory of potential flow , steady lifting - surface theory and the potential based low - order surface panel methodi the mathematical models for predicting the performance of the hd propeller and mau propeller are respectively established in this paper , and the numerical calculations are also carried out
本文首先基于势流理论和定常螺旋桨的升力面理论，以及基于速度势的低阶面元法理论建立了沪东型( hd )螺旋桨和常规mau图谱桨水动力性能预报的数学模型，并对其进行了数值分析。 | | 6. | Based on the green ' s formula and the assumption of the propeller blade ' s thin sections , a lifting - surface method of propellers with the vortex lattice and equal source panel distributions on the mean camber surface has been introduced for the prediction of steady propeller ' s hydrodynamics in this paper . an approximate kurta condition was applied
基于creen公式和薄翼理论假设导出的升力面方法，采用在螺旋桨拱弧面上分布离散涡、源布置方法预报均匀流场中的螺旋桨的定常性能，螺旋桨尾涡面上压力连续性条件采用近似的kutta条件处理。 | | 7. | The lifting - line and lifting - surface design method , the harmonic analysis method based on the panel method , new section design ways , the effective operating curves are integrated into a whole design system of the unsteady propeller , the design system is effective and reliable by the design example , the model test and the application to the full scale ship
本文把升力线和升力面设计方法、基于面元法预报螺旋桨非定常性能的谐调分析方法，新剖面设计方法、有效运转曲线计算方法组合为一套完整的非均匀流场中螺旋桨设计计算系统，经实例设计和模型试验及实船的应用，该设计系统是可靠且有效的。 | | 8. | This paper present an ideal and calculation method of the effective operating curve where cavitations characteristic is not change . based on the lifting - line and lifting - surface method , using effective operating curve to control the cavitation type and " new section " design method to extend the width of cavitation bucket . the width will almost increase 30 % than the common section
提出了保持剖面空泡特征不变的有效运转曲线的思想和确定方法，在升力线和升力面的基础上，应用有效运转曲线控制空泡类型，采用“新剖面”设计方法扩大空泡斗宽度，其空泡斗宽度比常规剖面增加近30左右。 |
- Similar Words：
- "lifting-line propeller theory" English translation, "lifting-piston" English translation, "lifting-plane theory" English translation, "lifting-screw" English translation, "lifting-screw machine" English translation, "lifting-surface solution" English translation, "lifting-turning table" English translation, "lifting-up and pressing manipulation" English translation, "lifting; upthrow; upraise" English translation, "liftingblade" English translation
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