Volume fraction model 体积分数模型
In this paper, the Euler-Euler model was used to numerically analyze the influences of the particle volume fraction, the diameter of tube and the Reynolds number on the phase-change region.
采用双流体数学模型通过数值模拟发现：在层流条件下，双流体模型能够很好地模拟颗粒相体积分数、管径和R e对相变区间的影响。
Three kinds of new methods used for detecting fiber volume fraction of 3D woven composite were introduced, such as weighing method, theory model calculation method, digital image analysis method.
文中阐述了适用于三维机织复合材料纤维体积含量测定的3种新方法：称量法、理论模型法、数字图像分析法。
The effects of relative particle diameter and particle volume fraction on the packing density of particles mixtures were discussed by granule packing model.
采用颗粒堆积模型，讨论了矿物掺合料颗粒的相对粒径、体积含量对颗粒混合物体系堆积密实度的影响。
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