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形状渐变的颗粒与沉降液的相互作用
  • ISSN号：0253-231X
  • 期刊名称：《工程热物理学报》
  • 时间：0
  • 分类：TK16[动力工程及工程热物理—热能工程]
  • 作者机构：[1]清华大学热科学与动力工程教育部重点实验室,北京100084
  • 相关基金：国家自然科学基金重点项目（No.10632070）
作者： 王锦生[1], 陈程[1], 祝俊宗[1], 祁海鹰[1]
关键词： 方底长方体, 颗粒-沉降液相互作用, 统一曳力模型, 阿基米德数, cuboid with square bases, solid-fluid interaction, general drag model, Archimedes number
中文摘要：

工业过程中存在大量的含非球形颗粒的多相流动,研究这类颗粒与流体的相互作用有重要的应用价值。本文选择底面为方形、形状随边长和高度规律变化的长方体颗粒,采用单颗粒沉降法测量了曳力系数,研究了形状变化、材料密度和沉降液黏度的影响。发现曳力系数在整个颗粒Re_p数范围（0.05～6300）内均高于球形颗粒,特别是采用阿基米德数Ar与Re_p数可揭示出所有数据的内在规律,提出了适用于这类长方体颗粒所有形状的统一曳力模型。

英文摘要：

The interaction between non-spherical particles and fluid is very important for many industrial processes.This study investigates the drag of single particle of cuboid with square bases with regular changed shapes experimentally.The influence of particle shape and density and fluid parameters is analyzed.The drag coefficients of cuboids are higher than that of spheres for Re_p from 0.05 to 6300.Based on the inherent law of all the data with Ar and Re_p,a general and accurate drag model for these different shape particles is proposed.

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期刊信息
  • 《工程热物理学报》
  • 中国科技核心期刊
  • 主管单位:中国科学院
  • 主办单位:中国工程热物理学会 中国科学院工程热物理研究所
  • 主编：徐建中
  • 地址：北京2706信箱
  • 邮编：100080
  • 邮箱：xb@mail.etp.ac.cn
  • 电话：010-62584937
  • 国际标准刊号：ISSN：0253-231X
  • 国内统一刊号：ISSN：11-2091/O4
  • 邮发代号:2-185
  • 获奖情况:
  • 中国期刊方阵“双效”期刊
  • 国内外数据库收录:
  • 美国化学文摘（网络版）,荷兰文摘与引文数据库,美国工程索引,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）,中国北大核心期刊（2000版）
  • 被引量:21026