1) gas nucleus
气核
1.
Influence of gas nucleus on scale effect of cavitation;
气核对空化比尺效应的影响
2.
Based on the dynamic equation of bubble,development time of gas nucleus in water and the required critical pressure are gained.
为了消除空化试验的比尺效应,具体分析脉动压力对空化的影响,从泡动力学方程得出水中气核的发育时间和临界压力,得出气核的生长时间小于水流的负脉动周期;另由于水流脉动对气核的振荡作用,使气核提前膨胀,促使空化提前发生,计算空化数时需计入脉动压力项。
3.
The energy flux and mass flux equations have been established while a liquid vapor phase change occurs on spherical gas nucleus wall on the basis of non equilibrium thermodynamics.
从非平衡态热力学理论出发，建立了有相变发生时球形气核与围流液体之间能量流和物质流的方程式。
2) nuclei
[英]['nju:kli,ai] [美]['njuklɪ,aɪ]
气核
1.
Recent research on cavitation shows that the nuclei spectrum should be modeled in order for the cavi tation characteristics to be simulated.
法国空化界对气核的相似原理以及空泡水筒中气核播种的方法进行了较深人的探讨。
3) bubbled nucleation
气泡核
4) cell nucleation
气泡成核
1.
Disadvantages of classical theory of cell nucleation in motion polymer melt were analyzed.
分析了经典成核理论对于动态聚合物熔体中气泡成核的局限性 ;概括了剪切流场中气泡成核的研究进展 ,并对剪切流场中泡核拉伸模型、空穴成核模型进行了详细的分析和讨论 ,指出了其对气泡成核过程解释的不足 ;介绍了最新的气泡成核中的剪切能成核理论 ,该理论较完善地解释了剪切流场中气泡成核过程 ;最后指出了气泡成核研究的发展方向。
2.
So far, the emphasis of study in this field has transformed from cell nucleation and growth theory to many factors affecting the extrusion system,so as to better control the cell density, cell distribution and cell size.
针对微孔塑料挤出的全过程,对影响气泡成核、成长及泡孔密度的诸多因素如预定型压力、熔体温度、粘度、气泡界面张力、定型卷取速度。
3.
The influence of technological condition on cell nucleation was studied in microcellular plastics extrusion processing for supercritical CO2/PS by a finite element method CFD.
通过CFD软件对超临界CO2/PS均相熔体在快速降压口模中流动状态的数值模拟,研究了工艺参数对CO2/PS均相熔体气泡成核的影响。
5) bubble nucleation
气泡成核
1.
Study of Bubble Nucleation Theory under Shearing Flow;
剪切流场中气泡成核理论的研究
2.
The influence of tension effect on the polymer's freedom volume and as a result of it on the bubble nucleation when extrusion and foaming molding with supercritical CO2 fluid as foaming agent are analyzed.
分析采用超临界CO_2流体挤出发泡成型时拉伸作用对聚合物分子自由体积的影响,以及由此引起的对气泡成核的影响。
3.
In the foam process of cellular plastics, bubble nucleation has decisive effect on cell density and cell distribution, so it is the crucial factor to control the foam quality.
前人对泡沫塑料气泡成核过程的研究基本上都是以经典成核理论为基础进行的。
6) air core
空气核
1.
Stability analysis on air core inside de-oiling hydrocyclone;
脱油型水力旋流器空气核的稳定性分析
补充资料：气核
1.指山石。语出晋杨泉《物理论》:"石﹐气之核也。气之生石﹐犹人筋络之生爪牙也。"
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