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两相流中颗粒参数分布的矩方法研究
  • 期刊名称：空气动力学学报
  • 时间：0
  • 页码：656-663
  • 语言：中文
  • 分类：O359.1[理学—流体力学;理学—力学]
  • 作者机构：[1]浙江大学力学系流体工程研究所,浙江杭州310027, [2]中国计量学院流动检测与仿真研究所,浙江杭州310018
  • 相关基金：国家自然科学基金重点项目资助（10632070）
  • 相关项目：超常颗粒多相流动力学模型
作者： 林建忠|刘演华|
关键词： 两相流, 矩方法, 数值计算, 颗粒粒径分布, multiphase flow, moment method, numerical simulation, particle size distribution
中文摘要：

对矩方法进行研究，采用积分矩方法和直接积分矩方法对4个典型问题进行数值计算，分析比较了积分矩方法和直接积分矩方法的精度、效率以及稳定性。结果表明：与积分矩方法相比，用直接积分矩方法计算时计算效率略高、稳定性好，且计算结果的精度相当。结论对于两相流中颗粒参数的数值计算乃至了解颗粒的演变特性具有参考价值。

英文摘要：

This paper studies the method of moments and takes advantage of both quadrature method of moment （QMOM） and direct quadrature method of moment（DQMOM） to study 10 classical problems. Through the simulation, the accuracy, efficiency and stability of the two techniques are analyzed and compared with each other. The results show that DQMOM has a little higher efficiency, better stability and the same accuracy in comparison with QMOM. This conclusion is referential for the simulation of particulate parameters in multiphase flow and even of great importance for understanding the characteristic of evolution of particle system.

同期刊论文项目
超常颗粒多相流动力学模型
期刊论文 86 会议论文 15 获奖 2 著作 1
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