FLUID DYNAMIC MODEL OF CONCURRENT-UP GAS-SOLID TWO-PHASE FLOW

CHENG Congli; LI Jinghai; ZHANG Zhongdong; YUAN Jie

您当前的位置：

首页 >

文章列表页 >

FLUID DYNAMIC MODEL OF CONCURRENT-UP GAS-SOLID TWO-PHASE FLOW

更新时间：2025-12-10

- FLUID DYNAMIC MODEL OF CONCURRENT-UP GAS-SOLID TWO-PHASE FLOW
- CIESC Journal Issue 8, (2001)
- 作者机构：
  
  中国科学院化工冶金研究所多相开放实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 August 2001，
  
  Published：25 August 2001
- 稿件说明：
移动端阅览
CHENG Congli, LI Jinghai, ZHANG Zhongdong, et al. FLUID DYNAMIC MODEL OF CONCURRENT-UP GAS-SOLID TWO-PHASE FLOW[J]. CIESC Journal, 2001, (8).
DOI：

CHENG Congli, LI Jinghai, ZHANG Zhongdong, et al. FLUID DYNAMIC MODEL OF CONCURRENT-UP GAS-SOLID TWO-PHASE FLOW[J]. CIESC Journal, 2001, (8). DOI：

摘要

运用能量最小多尺度 (EMMS)模型

推导出滑移速度及颗粒速度的径向分布

并进一步计算了径向空隙率、流体速度、团聚物直径、流体对颗粒的悬浮输送能量和颗粒的质量流率等相关的动力学参数 .模型计算结果反映了气固垂直两相流的径向不均匀性 (稀、密两相共存 )及环 /核结构的存在 .计算值与实验结果相吻合 .滑移速度的计算结果表明在核心区内也存在着团聚物

并不是呈现单一颗粒运动形态

这与实验现象一致 .该模型不仅克服了原有EMMS模型求解困难的问题

而且其计算不依赖于核心区半径等任何待定参数

只需物性参数、床层截面平均空隙率和操作参数即可

方便了实际应用 .

Abstract

Radial slip velocity and solid velocity are formulated by using the energy-minimization multi-scale (EMMS) model

leading to analytical solutions for radial distribution of voidage

fluid velocity

cluster diameter and particle mass flux

and indicating the existence of radial heterogeneity and annulus/core structure. Model calculation is well consistent with experimental data. The model overcomes the difficulty in solving the original EMMS model

and makes it possible to predict patterns in gas-solid two-phase systems without using adjustable parameters.

关键词

Keywords

references

Views

436

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Progress in research of selective oxidation of low carbon polyols over nano-Au catalysts with precise electronic effect regulation

Heat transfer mechanisms, bottleneck identification and optimization in heat exchanger networks under variable operating conditions

Thermodynamic study of germanium-impurity competitive deposition in GeCl4-MxCly-H2 system

Performance study of gas-liquid vortex separators under low cross-sectional gas velocity

Effect of belt structure design on the vulcanization characteristics of all-steel radial tires

Related Author

No data

Related Institution

No data

⁰