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中文摘要：
波状栓塞流是气力输送中的一种典型流型。为了发展更为准确和细致的栓塞流数学模型，本文引入动理学理论建立气一固两相波状栓塞流动的数学模型，对管道内的波状栓塞流动进行了三维数值研究，再现了流动过程中栓塞和堆积层的形成、运动过程，得到了压力降、空气速度、栓塞长度和堆积层厚度等重要的流动参数；栓塞长度、堆积层体厚度随空气表观速度的变化等一些细微流动特征得到了体现，表明动理学理论能够反映出栓塞流这种非连续高浓度气一固流动的物理本质，具有很好的适用性。本文的研究为栓塞流数值模型的发展引入了一种新的数学工具和思路。
英文摘要：
Wavelike slug-flow is a representative flow type in horizontal pneumatic conveying. Kinetic theory was introduced in this paper, and a 3D kinetic numerical model for wavelike slug gas-solid flow was established. Wavelike motion of particulate slugs in horizontal pipes was numerical investigated. The formation and motion process of slugs and settled layer was simulated. The flow properties like pressure drop, air velocity, slug length and settled layer thickness were obtained, and the detailed characteristics of slug length and settled layer thickness changes with air velocity were also obtained.These results indicated that kinetic theory can represent the physical characteristics of the discontinuous dense gas-solid flow of wavelike slug pneumatic conveying. The trial in this paper brings in a new idea for the numerical calculation of slug-flow pneumatic conveying.
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