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numerical
相关语句
  数值
    Numerical Simulation Research of Several Problems in Man Machine and Enviroment Engineering
    人机与环境工程中若干问题的数值模拟研究
短句来源
    Study of the Numerical Methods for Satellite Dynamics Equations and Application of Satellite Laser Ranging Technique to Precise Orbit Determination
    人卫运动方程的数值解法及激光测距技术在精密定轨中的应用研究
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    Experimental and Numerical Study of Premixed Superadiabatic Combustion in Porous Media with Reciprocating Flow
    多孔介质内往复流动下超绝热燃烧的实验和数值模拟研究
短句来源
    Research on Numerical Simulation of N-S Equations for the Three-Dimensional Flow Field in Transonic Compressor Rotor
    跨声速压气机转子三维流场Navier-Stokes方程数值模拟
短句来源
    Theoretical Analysis and Numerical Simulation of Dense Compressible Gas-Solid Two-Phase Turbulent Flow
    密相可压气固两相湍流流动的理论分析及其数值模拟
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  “numerical”译为未确定词的双语例句
    Numerical and Experimental Simulations of Dynamic Thermal Management of Small Scale Space Station
    小型空间站热管理系统动态仿真与实验研究
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    A NUMERICAL STUDY OF PARTICLE DISPERSION IN MIXING LAYER WITH RANDOM VORTEX METHOD
    用随机涡法研究混合层中的颗粒扩散
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    Numerical Design Method for Modern NLF Airfoils
    现代自然层流翼型的设计方法
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    NUMERICAL INVESTIGATION ON FUEL DROPLET VAPORIZATION IN A HIGHPRESSURE UNSTABLE ENVIRONMENT
    高压不稳定环境中的燃料液滴蒸发
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    NUMERICAL STUDY ON THE VORTEX STRUCTURES IN THE WAKE OF AN OSCILLATING CIRCULAR CYLINDER IN A UNIFORM FLOW
    NUMERICAL STUDY ON THE VORTEX STRUCTURES IN THE WAKE OF AN OSCILLATING CIRCULAR CYLINDER IN A UNIFORM FLOW
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  numerical
The essential dimension is a numerical invariant of the group; it is often equal to the minimal number of independent parameters required to describe all algebraic objects of a certain type.
      
We do this in a setting that closely resembles the numerical analysis setting of Mallat and Zhong and that seems to capture something of the essence of their (practical) reconstruction method.
      
We do this in a setting that closely resembles the numerical analysis setting of Mallat and Zhong and that seems to capture something of the essence of their (practical) reconstruction method.
      
Mathematical details and numerical examples are included.
      
Then, we describe a numerical method to compute the dual function and give an estimate of the error.
      
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Introduced in this paper is a new method by which the camber line of the turbine blade profile is described by a number of high order polynomial function sections, and which ensures the absence of flex point that is usually accompnied with that function. The paper offers to give a'description of the radius of the inscribed circles of the profile by a number of high order polynomial function sections & to find with numerical envelope method two envelops of the inscribed circles family of the profile, thus...

Introduced in this paper is a new method by which the camber line of the turbine blade profile is described by a number of high order polynomial function sections, and which ensures the absence of flex point that is usually accompnied with that function. The paper offers to give a'description of the radius of the inscribed circles of the profile by a number of high order polynomial function sections & to find with numerical envelope method two envelops of the inscribed circles family of the profile, thus forming the pressure surface and the suction surface of the blade profile respectively.

本文提出了用分段高次多项式来描述涡轮叶型的中弧线,并保证不出现多项式所固有的可能会引起波动危险的一种新方法;提出了用分段高次多项式来描述叶型内切圆的半径;用数值包络法求出叶型内切圆族的两条包络线而构成叶型的叶盆,叶背型面。

At present, many of numerical methods for calculating aerodynamic forces of arbitrary wings are used to solve longitudinal characteristics, only a few of them are directly used to solve lateral and directional characteristics. This paper discusses the aerodynamical models of votes-lattice singularity distribution method of wings with angle of attack and sideslip on the basis of references [1] and [2]. For wings of arbitrary plan forms, sideslip aerodynamic characteristics have been calculated numerically...

At present, many of numerical methods for calculating aerodynamic forces of arbitrary wings are used to solve longitudinal characteristics, only a few of them are directly used to solve lateral and directional characteristics. This paper discusses the aerodynamical models of votes-lattice singularity distribution method of wings with angle of attack and sideslip on the basis of references [1] and [2]. For wings of arbitrary plan forms, sideslip aerodynamic characteristics have been calculated numerically and compared with experimental values.

目前,关于机翼气动力的数值解法,多数是解决纵向问题,直接解决横侧向问题的尚少。本文在综合资料[1]、[2]的基础上,讨论了在有迎角和侧滑角情况下,涡格奇点分布法的气动模型。对几种平面形状的机翼侧滑气动力特性进行了数值计算,并与实验作了比较。

Introduced in this paper is a new method by which parameters are selected on the principle of the maximum turbine efficiency to derive a formula for the calculation of the optimal velocity ratio, and on the principle of the minimum leaving velocity loss and preventing diffusion flow to derive respectively the formulas for calculation of rational veloity ratio. Comparing the preceding three methods with the conventional method of "zero-whirl exhaust" (i.e.condition of α2 = 90 °) and Mitrosm's method for selecting...

Introduced in this paper is a new method by which parameters are selected on the principle of the maximum turbine efficiency to derive a formula for the calculation of the optimal velocity ratio, and on the principle of the minimum leaving velocity loss and preventing diffusion flow to derive respectively the formulas for calculation of rational veloity ratio. Comparing the preceding three methods with the conventional method of "zero-whirl exhaust" (i.e.condition of α2 = 90 °) and Mitrosm's method for selecting parameters by numerical examples, we find that the methods presented in this paper for selecting parameters are satisfactory, the efficiency is high and defects by Mitrosin's method are overcome. We suggest that the method be applied to the design of the radial flow turbine.

本文以涡轮效率最大的原则选参数,导出了计算最佳速比的公式;也以离速损失最小和防止扩压流动的原则选参数,分别导出了计算合理速比的公式。把以上三种选参数的方法和传统的以“零涡排气”(α_2=90°的条件)选参数的方法与米氏选参数的方法用数字例子进行了比较。经过比较认为:本文提供的选参数方法是令人满意的,效率是高的,并克服了米氏选参数方法的缺点,故建议可用于径向冷却涡轮的设计实践。

 
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