另外,叶根泄漏流的周向速度分量越大,泄漏流对转子流场的不利影响也越大。
Additionally, the larger the circumferential velocity component of hub leakage flow, the greater the deleterious effect of hub leakage upon the rotor flow.
建立了旋流长度及旋流周向速度的计算公式,为分析旋流段水泥浆顶替效率奠定了基础。
To make foundation for analyzing the displacement efficiency of whirlflow cement slurry, formulas of whirlflow length and angular velocity are established. The field applications sho…
为了研究离心不稳定对线性增长率的影响,本研究中基本流的周向速度可以是离心稳定的,也可以是离心不稳定的。
To investigate the roles of centrifugal instability on the linear growth rate of the flows, the azimuthal velocity of the basic flow is either centrifugally stable or unstable.
结果表明转捩总是最先出现在来流马赫数不太大,或来流雷诺数较高并且具有较大的周向速度或周向波数的情况下。
The results show that the transition more likely happen under the situations with high azimuthal wave number and speed, and at a relatively low mach number and high Reynolds number.
铁盘以每秒26周的速度向相反方向旋转。
The discs whirred in opposite directions some 26 times a second.
它们向四周扩散,速度则取决于他们移动时候通过岩石的密度。
They move in all directions, at speeds which depend upon the density of the rocks through which they are moving.
测量得到了三个不同周向位置下的涡量图和速度矢量图,并观测到了叶顶泄漏涡的涡旋结构。
The velocity vector and vortical contour in three different circumference positions were successfully acquired and the structure of the tip leakage vortex was clearly illustrated.
利用计算流体力学通用软件FLUENT对整体流场和定转子间隙区流场中周向流速度场进行了数值模拟,并对理论分析进行了补充。
The field of whole flow field and tangential velocity between stator and rotor were imitated based on FLUENT. The analysis in theory was replenished.
描述了失速团数目、失速团传播速度和周向范围与叶栅主要几何参数的关系。
The relation between the number and speed of stall cells and the circumferential stalled region and the main geometric parameters of cascade is described.
轮毂比0.325时,周向平均径向速度分布出现明显“畸变”。
The circumferentially averaged velocity distribution of the radial velocity is distorted when the hub/tip ratio is 0.325.
轮毂比0.325时,周向平均径向速度分布出现明显“畸变”。
The circumferentially averaged velocity distribution of the radial velocity is distorted when the hub/tip ratio is 0.325.
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