指出在紊流状态下,动特性系数的迭代是正确计算轴承稳定极限转速值的关键。
At turbulent state, iteration of the dynamic coefficients is the key to correct calculating revolution values of stability limit of.
根据紊流状态下的守恒原理,导出了描述掘进巷道风流紊流流动和温度分布的微分方程。
According to the law of conservation in the state of turbulent flow, the differential equation describing the airflow temperature distribution in drifting tunnel is derived.
属于拐点不稳定性的高频二次不稳定模态对最后转捩的影响主要体现在与其它扰动的相互作用,并导致出现紊流状态宽带频谱。
The main effect of inflectional instability mode in the final breakdown seems to interact with the disturbances having developed and thus widens the frequency spectrum to turbulent state.
提出了关于变偏心度环空中计算非牛顿流体在层流、过渡流及紊流状态下压降、流速的方法;给出了流场特性分析及数值模拟结果。
The method is presented to simulate pressure losses and flow velocities in skewed narrow annular geometries for laminar, transition and turbulent non-Newtonian flow.
本文以流体力学理论为基础,提出在应用自由紊流的絮凝池内,大小不同的颗粒均可处于良好絮凝状态。
Based on the theory of fluid mechanics this paper suggests that different-size particles can be satisfactorily flocculated if free turbulence occupies almost all the space of the flocculator.
主要研究气动喷嘴出口气流紊流脉动对喷雾浓度场及燃烧状态温度场的影响。
The effects of turbulence intensity on liquid spray distribution and temperature profile behind airblast atomizer have been investigated.
在载体蜂窝孔内随着空速的增加气流状态由层流向紊流转变,因此不能简单地将其气流简化为不可压层流;
When flow rate increases, the flow state in honeycomb hole turns from laminar to turbulent, so it can not always be simplified as incompressible laminar flow;
设计状态转子出口流动阻塞、损失、高水平紊流脉动及噪声主要发生在叶尖通道中部、尾迹和叶根吸力面角区;
In design condition, the flow blockage, loss, turbulence and noise at the exit focus mainly in the tip mid-passage, wake and the corner between the hub and the suction surface;
半自由状态下的短路流场是平行平面流、环形紊流射流及汇流叠加而成 。
The semi freedom short circuit is superposed by parallel plane flow, confluence and ringy turbulence jet.
半自由状态下的短路流场是平行平面流、环形紊流射流及汇流叠加而成 。
The semi freedom short circuit is superposed by parallel plane flow, confluence and ringy turbulence jet.
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