本文用动量理论对滑阀液动力进行了全面的理论分析。
The paper analyses the dynamic flow force of spool valves using the momentum theory of fluid.
并以更类似角动量理论的方法,重证了著名的嘉当定理及其它定理。
The well known Cartan theorems and other theorems are reproduced in analogy with angular momentum forms.
在高尖速比范围内,本方法给出的结果比动量理论给出的更加接加接近实验数据。
In the range of high tip-speed ratio the results calculated by this method are closer to experimental data than that computed by momentum theory.
结合动量理论和涡流理论,推导了桨叶环量方程,用广义尾流模型计算了旋翼下洗流场。
Combining momentum theory and vortex theory, rotor circulation equation was deduced. The rotor down-wash flow field was calculated using generalized down-wash flow model.
为了充分考虑旋翼尾迹对流场的影响,采用周期性边界条件和由动量理论导出的远场边界条件。
To incorporate the important effects of the rotor wake, the far-field boundary condition derived from the rotor momentum theory and the cyclic boundary condition have been used.
基于叶素动量理论分析了小型风力机的气动性能分析模型,并提出了叶片的气动优化设计方法。
Based on the blade element-momentum theory, this paper studied the aerodynamic performance prediction model for small wind turbines.
本文将传统的螺旋桨动量理论与计算流体力学的方法相结合,数值模拟螺旋桨滑流对其后部件气动特性的影响。
This thesis concentrates on the application of CFD techniques to simulate the effect of turbo-propeller slipstream on the parts behind the propeller.
本文根据流体动量理论导出了阀芯关闭过程中液动力的关系式,在此基础上建立了二通插装阀阀芯关闭运动方程。
From fluid flow momentum theory the basic equation of flow dynamic forces in the spool closing process is derived, and the spool dynamic equation of the two-way cartridge valve is established.
本文利用量子力学的宇称理论和角动量理论,对原子物理学中所熟知的电偶极辐射的跃迁选择定则进行了理论探讨。
In this paper, we discussed the transition selection rule of electrical dipole radiation in atom physics by the parity theory and angular momentum theory in quantum.
引入尾流收缩比因子,并将大速度时的涵道等效为圆形机翼,建立了一个适合于直升机悬停和前飞状态涵道尾桨气动特性分析的动量理论方法。
The shroud at high speed is modeled as an elliptic wing in order to construct a momentum theory method to investigate the aerodynamic characteristics of ducted tail rotor in hover and forward flight.
本文综述了单事件横动量起伏的理论和实验研究目的和现状。
In this article, the purpose and status of investigating the event-by-event fluctuations of transverse momentum are summarized both in theory and in experiment.
基于质量、动量和能量守恒定律及井筒径向传热理论建立了流体压力、温度分布预测数学模型。
Based on mass, momentum, energy conservation and the theory of wellbore radius heat transmission, established fluid pressure and temperature distribution prediction mathematical models.
据金属凝固理论和磁流体力学分析,电磁搅拌力引起的动量对流对补缩的促进作用并不大。
Based on theory analysis of metal solidification and hydrodynamics, momentum convection generated by rotating electromagnetic field do not improve feeding obviously.
用算符理论推出了氢原子和类氢离子的等式型径向动量-位置不确定关系。
The radial momentum-position uncertainty relation in equality form of hydrogen atom and hydrogen-like ion is deduced by using the operator theory.
这种动量效应对另一条金融理论――”有效市场假设”――产生了强烈的冲击。
The momentum effect drives a juggernaut through one of the tenets of finance theory, the efficient-market hypothesis.
在对气动测量进行理论分析的基础上,研制出一种差动式新型气动量仪。
On the basis of theoretical analysis on pneumatic measuring instruments, a new type of pneumatic instrument is introduced.
本文应用流体力学理论分析了高压均质过程中,微孔射流内动量及流场结构。
This paper introduces the momentum and flow field of tiny-hole jet-flow in high-pressure homogenization processing by applying fluid dynamics.
理论分析和数值试验的结果都表明,本模型严格地满足质量守恒定律和动量定理。
The theoretical analysis and numerical tests both show that this model strictly obeys the conservation law of mass and momentum.
本文在对气动测量进行理论分析的基础上,研制出一种新型气动量仪。
On the basis of theoretical analysis on the pneumatic measurement, a new type of pneumatic measuring instrument was developed.
应用最大熵原理和动量守恒定律,从理论上建立了喷雾液滴尺寸和速度联合分布函数。
A droplet size and velocity distribution function was theoretically derived based on the maximum entropy principle and the momentum conservation law.
叶片元素理论的方法与动量原理的方法相反,因为它关注的是由流体运动导致叶片产生的力。
The approach of blade-element theory is opposite that of momentum theory since it is concerned with the forces produced by the blades as a result of the motion of the fluid.
分数角动量的存在必然导致分数磁通量子化,而分数磁通量子化和超导理论以及迄今为止的实验结果不相矛盾。
The fractional angular momentum would lead to the fractional quantization of magnetic flux which does not contradict the theory of superconductivity and the result of previous experiments.
通过对床中物体表面与碰撞颗粒流之间的动量衡算,将颗粒流动量通量与颗粒的碰撞压力相关联,建立了流化床中颗粒碰撞压力的理论模型。
Relating the momentum flux of particle with the particle impact pressure on objects, a theoretical model of the particle impact pressure in fluidized bed is developed.
作为有效市场理论的重要异象,动量效应是基于风险的传统资产定价理论的最严重挑战之一。
As an important anomaly of the effective market theory, the momentum effect is one of the most serious challenges to the classical models of rational price formation.
本文将动量-叶素理论推广应用于计算水平轴风车叶轮有侧偏角或上仰角时的气动力。
Based on the traditional Momentum-Blade Element theory, an improved method of aerodynamic calculation about the horizontal axis wind turbine in yaw or in pitch-up is presented in this paper.
提出应用气动量仪检测溢流阀液体泄漏量的理论依据。
The theoretical basis of checking the internal leakage flowrate of relief valve by pneumatic measuring instrument was put forward.
高速运行的凸轮开口机构的名义运动量与综框的运动响应方面存在偏差,通过实验和理论计算分析系统的运动偏差及其对织造的影响。
There is deviation between the theory motion of the CAM and the response of the harness frame. The derivation and the influence on weaving are discussed by experiment and calculation.
随后,利用空气动力学理论讨论了贴海面动量、感热和水汽输送的参数化问题。
The parametrization problem of the momentum, sensible heat and water vapour transfer over the near sea surface is discussed by means of the aerodynamic theory.
不同于爱因斯坦的方程,ECKS万有引力理论考虑了基本粒子的旋转或角动量。
Unlike Einstein's equations, ECKS gravity takes account of the spin or angular momentum of elementary particles.
本文以脉动半球声源为基本物理模型,推导了由振动量计算振动点的界面噪声的理论公式。
This paper develops a theoretical formula for calculating interfacial noise of vibrating point from its vibratory quantity with pulse semisphere sound source as basic physical model.
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