1) long bubble
长气泡
1.
Slug flow is an alternation in space and time of long bubbles and liquid slugs.
气液两相段塞流是液塞和长气泡在空间和时间上的交替,在流动过程中表现出发展特性。
2) bubble growth
气泡长大
1.
The continuity equation,motion equation and mass diffusion conservation equation of bubble growth were deduced from island model.
利用海岛模型导出金属流体中气泡长大的连续性方程、运动方程和扩散质量守恒方程,与气泡表面的质量守恒、西华特定律和理想气体状态方程构成气泡长大动力学方程组,在确定粘度、扩散系数和表面张力以及忽略部分惯性力的基础上,对动力学方程组进行了求解,得到金属流体中气泡长大动力学方程,可用于描述泡沫铝气泡长大过程中时间、温度、第二相质量分数及压强各参数对气泡半径变化的影响,是金属流体中气泡演变过程动力学的首次理论描述。
2.
The principle of bubble free growth was studied in microcellular plastics extrusion processing for supercritical CO_2/PS,and the globe (model) was chosen as the physical model of the foaming system,and the Dewitt constitutive equation,the equated law and the ideal gas law etc were used to study and discuss the mathematical models of the bubble growth in t.
研究探讨了超临界CO2/PS微孔塑料挤出成型中气泡核自由长大的机理,选用球形模型为表征气泡长大的物理模型,利用Dewitt本构方程、守恒定律和理想气体状态方程,研究探讨了气泡核自由长大阶段的数学模型,并对数学模型进行了求解和实验验证。
3.
The study of the bubble growth is significant to the molding and solidification of foamed plastics.
气泡长大过程的研究对泡沫塑料的成型与定型具有相当重要的意义。
5) micro-bubble growth
微气泡生长
1.
A physical model of micro-bubble growth in the rectangular microchannel was established by considering the micro layer of liquid in the heater.
通过对微机电系统微流体器件中气泡生长实验结果的分析,考虑加热元表面液体微层的作用,将微气泡生长分为晶核形成、球形气泡、受侧壁挤压的气泡、沿微通道生长的气泡4个阶段,建立了矩形微通道内微气泡控制生长物理模型;采用Level Set Method模拟了矩形微通道内微气泡控制生长过程,获得了微气泡生长特性。
2.
With the silicon microfabrication process,six micro-electro-mechanical systems(MEMS) devices for exploring micro-bubble growth were designed and fabricated.
采用微机电系统(MEMS)硅加工工艺,设计、加工出了6种不同规格的实验用微气泡控制生长MEMS器件;构建了MEMS器件中微气泡控制生长实验系统并完成了实验,讨论了热负荷、微加热元宽度、微通道截面参数、工质流速及物性参数等对微气泡生长的影响。
6) Blisters.
长园形气泡
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