Heat transfer model for particles with discrete element method

卜昌盛

doi:10.3969/j.issn.0438-1157.2012.03.004

您当前的位置：

首页 >

文章列表页 >

Heat transfer model for particles with discrete element method

更新时间：2025-12-10

- Heat transfer model for particles with discrete element method
- CIESC Journal Issue 3, Pages: 698-704(2012)
- 作者机构：
  
  东南大学能源热转换及其过程测控教育部重点实验室，能源与环境学院
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2012.03.004
  CLC： Q021.3
- Online First：05 March 2012，
  
  Published：05 March 2012
- 稿件说明：
移动端阅览
卜昌盛. Heat transfer model for particles with discrete element method[J]. CIESC Journal, 2012, (3): 698-704.
DOI：

卜昌盛. Heat transfer model for particles with discrete element method[J]. CIESC Journal, 2012, (3): 698-704. DOI： 10.3969/j.issn.0438-1157.2012.03.004.

摘要

颗粒间传热在诸多工业过程中有着十分重要的作用。详细考虑颗粒间传热机理，对颗粒间各传热途径建模，包括颗粒内部导热、颗粒粗糙表面传热、颗粒表面气膜及接触颗粒间隙气膜传热，并与离散颗粒模型(DEM)耦合，建立颗粒尺度下离散颗粒传热模型。以固定床为对象，考察颗粒粒径、颗粒比热容、颗粒热导率及压缩负载对固定床有效传热系数的影响，并将本文计算值和文献的实验值及模型预测值对比，结果表明，该模型可定量预测固定床有效传热系数。本文建立的离散颗粒传热模型为合理预测颗粒体系内的传热提供了一种有效方法。

Abstract

Heat conduction in granular assemblies plays an important role in industrial applications. In this paper

the details of heat transfer mechanism are considered in particle scale. The conduction resistances of solid interior

rough surface

gas film between solids

and gas-gap between contacted surfaces are modeled and coupled with discrete element method to deduce a heat transfer model. Numerical simulations are performed to investigate the effects of particle diameter

specific thermal capacity

thermal conductivity of particles and compressive load on effective thermal conductivity(ETC) in fixed beds. The predicted ETC is compared with experimental and simulated data in literature

indicating that the presented model can predict ETC satisfactorily

which provides a useful tool for studying heat transfer in particle assemblies.

关键词

Keywords

references

Views

626

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Multi objective optimization of flow and heat transfer characteristics of modified manifold microchannel heat sink based on machine learning

Thermo-gas-elastic coupling performance analysis of high-speed and high-temperature foil face seals

Experimental study of heat transfer enhancement by pressure waves in cross flow tube bundles

Study on performance enhancement and cold retention characteristics of solid packed bed cold energy storage

Review of research on liquid cooling technology for data centers

Related Author

TANG Songzhen

ZHANG Feiyang

YAN Ji

ZHANG Muqiao

GUO Ming

CHEN Yuan

ZHENG Shiyuan

LI Yuntang

Related Institution

School of Mechanical and Power Engineering, Zhengzhou University

BK21 FOUR ERICA-ACE Center, Hanyang University

College of Mechanical and Electical Engineering, China Jiliang University

AECC Changjiang Engine Co., Ltd.

College of Mechanical Engineering, Zhejiang University of Technology

⁰