1) bubble velocity
气泡速度
1.
The gas holdup and bubble velocity increased with increasing superficial gas velocity.
分析实验结果得出,气含率和气泡速度均随表观气速的升高而升高;在上升管内,气含率和气泡速度自中心向边壁逐渐降低,而沿轴向变化很小;在分布板区,由于受分布器及下降管的影响,使气含率和气泡速度在不同角向存在不同的径向分布。
2.
A capillary two phase flow system was set up and used to develop a double-sensor conductivity method for measuring two phase Taylor flow characteristics through a circular capillary,including bubble velocity,void fraction,bubble frequency and liquid slug length.
建立了单毛细管中两相流动传递参数实验系统,基于该系统开发了测取泰勒流下气泡速度、气含率、气泡频率以及液栓长度等参数的双电导测试系统。
3.
An image analysis method for measuring bubble velocity fields at high bubble number density is proposed.
提出了一种在高空隙率下气液两相流中气泡速度场的图像分析方法。
2) bubble rising velocity
气泡上升速度
1.
Bubble size and bubble rising velocity in a gas-liquid-solid two-dimensional fluidized bed were studied by a photographic method.
利用摄相法研究了二维气-液—固三相流化床中气泡的大小及上升速度,分析了操作条件的变化对气泡行为的影响,提出了气泡直径及气泡上升速度的经验关联式。
3) bubble rise velocity
气泡上升速度
1.
The bubble rise velocity and its distribution at different radial positions and the radial profile of the mean bubble rise velocity have been measured using the newly developed fiber optic probe.
应用此系统研究了三相循环流化床中不同径向位置气泡的上升速度分布、气泡上升速度均值的径向布以及操作条件对这两种分布的影响。
2.
On the basis of the balance equiation for the buoyancy, the liquid viscous force and the particle impaction force acting on a single spherical bubble, a model for the bubble rise velocity in pressurized liquid solid fluidized beds is developed and formulated.
以考虑浮力、液相粘性阻力和颗粒相碰撞力的气泡受力平衡关系式为基础 ,发展并建立了加压液 -固流化床中单个球形气泡上升速度的理论模型 。
4) bubble buoyancy velocity
气泡上浮速度
1.
It is found that the bubble buoyancy velocity in model must obey the similarity law of gravity.
在模型采用和原型相同的介质,即水和空气进行试验时,由于气泡上浮速度不相似,引起掺气浓度巨大的缩尺影响,本文首次对这种影响进行定量估计。
5) 2D bubble velocity
二维气泡速度
6) bubble velocity fluctuation
气泡速度波动
补充资料:表面气泡
表面气泡
skin hole
b iaomian qiPao表面气泡(skin hole)钢锭表面上一些开口的孔眼。是钢中气体析出于钢锭表皮而形成的;钢锭模壁潮湿,或使用的保护渣潮湿,在浇注时蒸发出气体,也会使钢锭形成表面气泡。它会使轧材出现深口、裂痕、甚至海绵面等缺陷。其防止措施主要是降低钢液气体含量,保持锭模和保护渣干操。 (汪建农)
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参考词条