the subrogation of primaries will not bring serious velocity fluctuation if the design is appropriate.
设计合理时初级的更替不会造成速度严重波动;
dual hot wires were used to separate the simultaneous signals due to temperature fluctuation and velocity fluctuation appearing in high tempera tureturbulence measurements.
本文采用双热线法分离在高温紊流中同时出现的温度脉动与速度脉动信号。
using these formulas and a 1-d lda, mean square value of 2-d turbulent velocity fluctuation and reynolds shear stress have been measured for water flow in a square duct.
用这些公式和一台一维激光多普勒测速计,测量了方形管道中水流的二维湍流速度脉动的均方值和雷诺切应力。
measures the time mean velocity and velocity fluctuation using a hot film anemometer with different confinement ratio for the axisymmetric turbulent jet in a dead-end tunnel.
介绍了采用热膜流速仪量测堵头管中不同受限度轴对称射流的时均流速和流速脉动。
a series of formulas are presented in this paper about the mean velocity profile, the intensity of velocity fluctuation and energy spectrum.
纵、横向脉动流速强度分布和能谱密度计算式。
experimental results indicate that velocity fluctuation signals in a flow field are typically random with a wide frequency band, and the air flow properties are satisfactory.
实验结果表明,气流的功率频谱密度没有较大的能量集中,属于宽频带信号,流场动态特性良好;
much attention has been paid to the characteristics of the mean velocity, streamwise velocity fluctuation intensity, high-order moment and reynold shear stress above the valley and peak.
笔者着重考察了在相同流动条件下两位置的平均速度、流向速度脉动强度、高阶矩以及雷诺剪应力的分布特性。
in addition, the height, density and perpendicularity of remnant stubble, straws and grass had influence on aerodynamic roughness and wind velocity fluctuation on different underlying surfaces.
however a convex rig on the guide rail is found to be able to offset the velocity fluctuation of chains from the polygonal action and virtually reduce the vibration.