采用离散旋涡法对振荡叶栅传播失速不稳定流场进行了数值模拟。
The unsteady flow in an oscillating cascade with propagating stall was simulated numerically with discrete vortex method.
为验证模型的可靠性,对静水中的振荡圆柱流场进行模拟,与实验及数值计算结果吻合较好。
Circular cylinder oscillating in water at rest is simulated to validate the model and the result compared with experimental and numerical simulation data is in good agreement.
采用参数多项式方法和振荡流体力学理论,求解静子叶片后的尾流场及尾流场作用下转子叶片通道内的非定常流场。
The wake flow of stator vanes and the unsteady flow in the passage of rotor blades were solved by using oscillating fluid mechanics theory and parametric polynomial method.
研究结果表明,双原子纠缠度影响场熵的平均值,而初始光场的强度则影响场熵演化的振荡特性。
The results show that the entanglement of atoms affects the mean-value of field entropy and the intensity of field affects the oscillation properties of field entropy evolution.
在漂移区中考虑直流空间电荷场的影响。我们发现电子运动在该区服从一振荡方程;
We find out that, in drift, region, the motion equation of electron is an oscillation one, which influences the prcbunching of electrons.
计算结果表明,振荡叶栅非定常流场的压力响应在叶栅前缘较大。
The results show that the unsteady pressure response is large in the oscillating cascade leading edge.
本文针对伺服阀前置级射流流场的流动情况,分析了产生和影响剪切层振荡的机理。
In this paper, the shear layer oscillation mechanism is analyzed producing and impacting which aiming at the flow circs of the jet flow simulation.
本文用数字粒子成像测速仪(DPIV),对圆柱体在静水中作正弦振动而产生的振荡流场进行了实测研究。
Digital particle image velocimetry (DPIV) was applied to investigate the flow field around a circular cylinder undergoing sinusoidal oscillating movement in still water.
通过管中心和其它管线的速度变化趋势,以及圆管径向的速度分布,描述了流场的整体流动特性,揭示了非牛顿流体管道流的速度过冲和振荡现象。
They can easy show the behaviors of the flow in the whole cube, reveal the phenomenon of locity overshooting and damping oscillation of the flow.
振荡腔室内流场特性是研究钻井水力它激振荡的重要内容。
The behavior of oscillation chamber flow field is an important content of studying drilling hydraulic independent excitation oscillation.
给出了HT-6B托卡马克上的共振螺旋场(RHF)对等离子体的约束和锯齿振荡行为的影响的实验结果。
The experiment results of The resonant helical field (RHF) effects on plasma confinement and sawtooth behavior on the HT-6B Tokamak are presented.
结果表明,选择合适的参量,我们可以找到保真度平均值较大,振荡幅度较小的光场态。
It is shown that we can find light field state with larger average fidelity and smaller oscillation amplitude by selecting the appropriate parameters.
随相干光场平均光子数的增加粒子数反转的振荡频率增大;
With the increase of the average photon number of the coherent light field, the oscillation frequency of the atomic population inversion increases correspondingly.
正交波罗棱镜腔存在腔内振荡光束线偏振运行条件,匀化了内腔OPO的抽运光光场。
A linear polarized-oscillating condition exists in the resonator, and the field of the pump laser for the OPO can be homogenized.
从速率方程出发,根据泵浦光和振荡光的场分布函数,进行了简单的数值模拟,模拟结果与实验结果能够较好的吻合。
Staring from the rate-equation theory , according to the field distribution function , some simple mathmatical simulations are made which meet the experiment better.
同时,浓度场的模拟对于注入分散特性的研究,对于振荡流反应器的流动模型的研究都具有重大的意义,它为完成这方面的工作提供了另一种方法。
At the same time, simulation of concentration field has great significance in researching characteristic of injection dispersion process and flow model of oscillatory flow reactor.
但由于光场与原子的纠缠和退纠缠速率加快,密度算符间距在每个周期内振荡加剧。
But due to the rate of disentanglement and entanglement between atom and field becomes more rapid, the distances oscillate more rapidly within each period.
本文求出了声重波传播过程中,低热层臭氧含量振荡和温度场起伏间的耦合关系。
In the course of acoustic-gravity wave (AGW) propagation, a coupling relation between the ozone density oscillations (ODO) and temperature fluctuations (TF) in the lower thermosphere is presented.
此外,通过对振荡叶栅非定常流场结构的研究,发现了叶片吸力面气流分离与叶片振动之间的耦合关系。
Through studying the structure of the unsteady flow field in vibrating cascades, the coupling relationship between flow separation on the suction surface and blade vibration is revealed.
本文提出两种结构的具有环形阳极的马鞍场电子振荡微电离规(以下简称鞍场规),它其于可以产生电子路径,因而产生有效的气相电离的静电马鞍场约束的基础上。
A new gauge described in this paper is based on the electrostatic saddle field confinement which is capable of producing long electron paths and consequently efficient gas phase ionization.
而当耦合系数变化较快时,崩塌和回复现象被加速,而光场压缩量将产生振荡,压缩效应将反复出现。
When the coupling coefficient changes rapidly, it accelerates the collapse-revival phenomena, and the squeezing parameter oscillates with time, the squeezing of the field appears repeatedly.
详细讨论了球体腔中产生的喇曼振荡、振荡输出谱及场分布等特性。
The Raman oscillation within the spherical cavity which includes the oscillation spectra of water and ethanol droplets and the field distribution inside the droplets are discussed in detail.
随着初始声子场强度变大,离子熵的演化类似于J-C模型中的场熵演化,不规则的振荡频率逐渐变小。
With the more initial number of phonon, the entropy evolution of the ion is similar to the field entropy evolution of Jaynes-Cummings model, and the vibration frequency become less gradually.
驱动场色散驱动场失谐量的增加而振荡时间变长,振幅和稳定值变大。
With the driving detuning increasing, the oscillating time of the dispersion of the driving field becomes longer, the amplitude and the stationary value increase.
随振荡雷诺数的增加,两计算流场和实验流场均存在由对称向不对称转化的流动模式的转型。
Besides, transformation of flow pattern exists in all the three fields of OFR with the increase of Re_0.
结果表明:在不考虑激光线宽及消相碰撞时,探测场的吸收随时间在零吸收附近作类似于阻尼减幅振荡,系统可实现无反转放大;
It is shown that the time-dependent probe absorption is oscillatorily damped to its steady state and transient amplification without inversion can be realized;
结果表明:在不考虑激光线宽及消相碰撞时,探测场的吸收随时间在零吸收附近作类似于阻尼减幅振荡,系统可实现无反转放大;
It is shown that the time-dependent probe absorption is oscillatorily damped to its steady state and transient amplification without inversion can be realized;
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