1) wall pressure fluctuations
壁脉动压强
1.
The vortex shedding frequency and the wall pressure fluctuations were measured with the aim of analying the effect of changing the clearance ratio shedding and the wall pressure fluctuations when the circular cylinder bed in the air turbulent boundary layer.
测量了尾涡脱落频率和平板表面压强脉动,目的是分析当圆柱嵌入空气湍流边界层的情况下,间隙比值对尾涡脱落频率及壁脉动压强的影响。
2) wall pressure fluctuation
脉动壁压
1.
The wall pressure fluctuation acting on the apron of the stilling pond was studied experimentally in order to understand its characteristics.
为进一步了解水流作用于消力池导墙上脉动压力的特性,通过模型实验获得了作用于消力池导墙上的脉动壁压信号,讨论了消力池导墙脉动壁压的统计特性。
2.
For better understanding the statistic characteristics of wallpressure fluctuation, the intensity and spectrum function of vertically impinging jet were experimentally investigated, and the method of proper orthogonal decomposition and low order approximation was also used to study the sequential signals of the wall pressure fluctuation of impinging jet.
为更好地了解冲击射流脉动壁压的统计特性,通过实验对其脉动壁压强度与频谱特性进行了研究,并对冲击射流脉动壁压时序信号的正交分解与低阶近似进行了探讨。
3) fluctuating wall pressure
脉动壁压
1.
Applying with probability therory and X2 check method, this paper has proved the fluctuating wall pressure of the pier-body produced by aeratedflow-splitting pier to be with normal probability distribution.
本文对掺气分流墩墩头脉动壁压采用中心及无量纲处理，用堆排序法及本文提出的最佳区间划分法进行频率等参数的统计计算，通过经验概率密度、分布函数与标准概率分布比较，依据格利文科定理判定和Ｘ２检验两种方法，论证了脉动壁压概率分布服从正态分布规律。
4) pressure fluctuation
压强脉动
1.
Flow parameters such as phase holdup and pressure fluctuation,as well as their axial and radial distributions were measured at different superficial phase velocities.
在配料固相质量分数为29%的条件下,实验测定了不同操作条件下反应器内的轴、径向相含率及其分布,轴、径向压强脉动,初步揭示了分布器以及操作条件对局部流动参数的效应。
5) fluctuating pressure
脉动压强
1.
Analysis of fluctuating pressure on curved surface bucket in spillway;
溢洪道曲面贴角鼻坎脉动压强分析
2.
Through model tests, the pressure strength behaviors of jet flow energy dissipation basin by aerated flow splitting piers are studied thereby obtaining the varying relations between the time averaged pressure and fluctuating pressure along the energy dissipation basin as well as the sharply weakening laws of pressure strength coefficients with an increase in inundation degrees.
通过模型试验研究了掺气分流墩射流消力塘的压强特性，得出了时均压强和脉动压强沿消力塘的变化关系及最大压强系数随淹没度增大急剧衰减的规律。
3.
The correlation,the spectrum and the turbulent scale of wall fluctuating pressure and fluctuating velocity,under the action of single and twin impinging jets,are studed in the paper by using 2-D LDA and the multiple points dynamic pressure scanning system.
本文用多通道动态压力检测系统和二维激光测速仪对在单股和双股射流作用下，水垫塘底板脉动压强与近壁脉动流速的相关、功率谱和紊动比尺进行了测试研究。
6) wall pressure fluctuations
壁面压力脉动
1.
Rich information of unsteady vortical structures immersed in wall turbulence is discernible in the weak signals of wall pressure fluctuations.
在壁湍流中,壁面压力脉动虽然信号微弱,但包含了湍流中许多旋涡结构运动特征。
补充资料：等离子体压强和磁压强
在流体近似下，可以把等离子体看成是彼此相互作用的电子和离子两种气体的混合物。它们各具有动力压强,上述两种气体成分的分压强之和P=k(niTi+neTe)称为等离子体压强，k是玻耳兹曼常数,角标i、e分别表示离子和电子。
经常遇到的处在静磁场 B中的等离子体，除了等离子体压强外，它还受到磁力 作用，j是电流密度。当磁力线是直的并互相平行时，(B·墷)B项等于零，相当于压强，称为等离子体磁压强。
在等离子体压强和磁压强并存之时，常用参数表示磁压强的相对重要性。这个参数称为比压。
经常遇到的处在静磁场 B中的等离子体，除了等离子体压强外，它还受到磁力 作用，j是电流密度。当磁力线是直的并互相平行时，(B·墷)B项等于零，相当于压强，称为等离子体磁压强。
在等离子体压强和磁压强并存之时，常用参数表示磁压强的相对重要性。这个参数称为比压。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条