梦剧场。六内蒙古湍流度我序曲。
环形空间3个速度分量的湍流度是同一个数量级的。
In annular space, the values of tangential, axial and radial turbulence intensity were of the same order of magnitude.
引射效率和气流的湍流度也达到相当好的水平。
The mass ratio and free stream turbulence have attained to considerably good level.
沿展向叶根、叶尖附近湍流度明显高于主流区。
The turbulence intensity is significantly higher near the hub and shroud than in the main flow field.
振动力使物料湍流度加大,使物料分层不易形成。
The vibration can increase the material turbulivity, and mostly avoid the stratification.
该风洞具有低湍流度、可变湍流度、低噪声等几个特色。
Some notable characteristics include low-turbulence, adaptable turbulence and low noise.
迄今为止,人们发现的降低气流湍流度的最有效的办法就是利用阻尼网。
So far the most effective means to lower the turbulence intensity of the airstream is to utilize damping screens.
绕两个翼型-平面的角区流动及其尾迹的实验是在低湍流度风洞中完成的。
The experimental studies on two wing body junctions and wakes were carried out in a low turbulence level wind tunnel.
同时利用了回流区内高温、低速、高湍流度等有利于着火的条件的新型煤粉稳燃器。
It can make full use of favourable ignition conditions such as high temperatures in reflow region and low velocity as well as high turbulent scale.
在近场区域,密度大的玻璃微珠对气相湍流度的增强作用高于密度小的聚苯乙烯颗粒;
In the near-fields, the gas-phase turbulence intensities are augmented more by glass particles with larger density than polyethylene particles with smaller density.
对背景湍流度很大的流动,边界层中有时会产生沿展向周期分布的流向速度的条纹结构。
For high levels of free-stream turbulence, streaky structures in boundary layer with the spanwise variations alternating will be generated.
平均速度剖面,湍流度剖面,积分尺度和风谱是反映大气湍流边界层流动的四个最基本的因素。
Mean velocity profile, turbulence intensity profile, integral scale and wind spectra are the most fundamental characteristics that describe the atmospheric turbulent boundary layer flow.
本文同时还研究了气流湍流度对测量方法的影响,最后提出转捩测量技术尚需进一步研讨的问题。
Meanwhile, the stream turbulence effects on the measurement are studied. Finally, the problems which must be researched further are presented for indicating boundary-layer transition.
双拱的静力三分力系数、变异性以及受湍流度的影响等均与两拱间距宽度比及竖向相对位移有关。
Arch forces coefficients and fluctuating buffeting forces are mainly decided by the space width ratio and the relatively vertical displacement.
不同密度材料的颗粒对气相平均速度的调制作用差别不明显,但对气相湍流度的调制作用显著不同。
It is found that particles with different material densities have the same influence on the mean decaying velocity, while they have different influences on the turbulence intensity.
运用OH-PLIF方法探测了不同燃料系数和出口湍流度下甲烷/空气的锥形预混火焰的火焰前锋结构。
The flame front structures of the methane/air premixed flames are observed by using OH- PLIF method in the different conditions of equivalence ratio and inlet turbulence intensity.
近年来用X型热线探头旋转法测量低湍流度的三维流场的报导较多,但是对它的使用范围以及测量精度论及的很少。
In recent years a lot of papers about technique for measuring a 3-d low turbulent flow field by means of rotating a X-type hot-wire probe has been published.
为了探讨在不同径向角下动量比和湍流度对圆柱形气膜孔流动和换热的影响规律,采用数值模拟方法,研究了涡轮叶片的冷却效率。
The cooling effectiveness of cylindrical gas-film cooling holes was numerically investigated, which was determined at different radial angles, momentum ratio and turbulent intensity.
通过模拟法和数字法处理数据,得到了迴流区的平均速度和湍流度分布,还从数字数据处理器得到了速度概率分布和概率密度函数。
Two data processing methods, one analogue method and the other digital, were employed in order to obtain the profiles of mean velocity and turbulent intensity.
找出优化的方法来保持风机过滤器机组的面风速均匀性及减少面风速的湍流度,对于保持风机过滤器机组下方区域的洁净度有重要意义。
It is significant to find optional method for keeping the face velocity uniformity of FFU and reducing the face velocity turbulivity of FFU, furthermore, to keep the cleanliness level under FFUs.
主要介绍涡度相关技术测定湍流通量的原理,及其在农田蒸散量测定方面的国内外应用研究进展。
The principle of measuring turbulent flux by eddy covariance system and its application to field evapotranspiration measurement were introduced in this paper.
基于湍流动能倾向方程,推导出了其只含风切变和大气稳定度的简化方程。
Based on the tendency equation of turbulent kinetic energy, its simplified equation including only wind shear and air stability was derived.
本文分析了从姿态稳定度、像面振动、大气散射与吸收、大气湍流以及海表背景对于成像质量影响。
In this paper, the influence of the imaging quality is studied from attitude inaccuracy, vibration, scattering and absorbing of the atmosphere, turbulence of the atmosphere and the sea surface.
另外,湍流应力还使对流的混合作用加强,从而导致恒星内部及表面的各元素丰度都发生改变。
Moreover, the turbulent stress also causes the convection the mixing action to strengthen, so elements abundance of the stellar interior and surface are all changed.
度是由大气湍流所引起的象的闪烁反射。
Seeing is the scintillation of image caused by turbulence in the atmosphere.
在离子温度梯度模(ITG)湍流背景中,通过最小自由度模型中模耦合方式产生带状流,对此模型做了动力学稳定性分析及数值求解。
The energy cascade process in the ITG mode turbulence and the relationship between Reynolds stress and zonal flow are also discussed.
但是在湍流强度较强的情形下,相干合成远场光束质量退化致非相干合成的情形,与激光阵列的紧凑度和激光波长无关。
In strong turbulent atmosphere, the far-field beam quality degrades into the incoherent combining case without any relationship with the fill factor and laser wavelength.
当射流速度比较大时,喷管的缺陷如进口出口的毛刺和流道壁的粗糙度是诱发湍流使射流破断的主要原因。
The turbulence induced by the defects of nozzle, such as the burr at the inlet and outlet, and the roughness of the wall, is the main cause to decrease the length of intact jet.
另外,文章还讨论了风廓线的变化以及地面粗糙度对湍流强度的影响。
In addition, in this paper, the changes of wind profile and effects of surface roughness on the intensities of turbulence arr discussed.
湍流强度、速度方差和速度偏度在林冠与大气交界面处达到最大,同时剪切也达到最强;
The turbulent strength, velocity flux, and skew were the largest at forest-atmosphere interface, as well the wind shear.
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