# [1]张媛媛,沈湘林,汤雪美,等.煤粉壁摩擦特性的实验与模拟[J].东南大学学报(自然科学版),2010,40(1):133-138.[doi:10.3969/j.issn.1001-0505.2010.01.025] 　Zhang Yuanyuan,Shen Xianglin,Tang Xuemei,et al.Wall friction characteristics of pulverized coal by experiment and numerical simulation[J].Journal of Southeast University (Natural Science Edition),2010,40(1):133-138.[doi:10.3969/j.issn.1001-0505.2010.01.025] 点击复制 煤粉壁摩擦特性的实验与模拟() 分享到： var jiathis_config = { data_track_clickback: true };

40

2010年第1期

133-138

2010-01-20

## 文章信息/Info

Title:
Wall friction characteristics of pulverized coal by experiment and numerical simulation

Author(s):
School of Energy and Environment, Southeast University, Nanjing 210096, China

Keywords:

TQ531.1
DOI:
10.3969/j.issn.1001-0505.2010.01.025

Abstract:
Effects of particle size and wall material on wall friction characteristics of pulverized coal were investigated by means of Jenike shear test. The wall materials include stainless steel, carbon steel and epoxy. Combining Jenike’s theory of flow of particulate solids, the variation of friction coefficient of pulverized coal with different particle size was studied. Results show that the wall friction force increases with the increasing in roughness and stiffness of wall materials, and also increases with the increasing in fine particle content of coal under same moisture capacity. On the other hand, the friction characteristics of pulverized coal were numerically simulated using the discrete element method(DEM). Comparing the results of the simulation and the experiment, reasonable agreements are obtained.

## 参考文献/References:

[1] 史慧玲.詹尼克理论在料仓设计中的应用[J].建材发展导向,1989(2):10-14.
[2] Cundall P A.A computer model for simulating progressive large scale movements in blocky system[C] //Muller Led Proc Symp Int Soc Rock Mechanics.Rotterdam,Netherlands:Balkama A A,1971,1:8-12.
[3] 王泳嘉,邢纪波.离散元法及其在岩土力学中的应用[M].沈阳:东北工学院出版社,1991.
[4] 邢纪波,王泳嘉.离散元法的改进及其在颗粒介质研究中的应用[J].岩土工程学报,1990,12(5):51-57.
Xing Jibo,Wang Yongjia.Improvement of discrete element method and its applications in granular media[J].Chinese Journal of Geotechnical Engineering,1990,12(5):51-57.(in Chinese)
[5] 武锦涛,陈纪忠,阳永荣.模拟颗粒流动的离散元方法及其应用[J].现代化工,2003,23(4):56-58.
Wu Jintao,Chen Jizhong,Yang Yongrong.Method and application of discrete element model for granular flow[J]. Modern Chemical Industry,2003,23(4):56-58.(in Chinese)
[6] Tsuji Y.Discrete particle simulation of gas-solid flows[C] //Powder and Particles.Kona,USA,1993,11:57-68.
[7] 袁竹林,徐益谦.从软、硬球模型探讨颗粒自转对流化状态的影响[J].工程热物理学报,2001,22(3):363-366.
Yuan Zhulin,Xu Yiqian.Study on the effect of particle rotation on fluidizing behavior using numerical simulation method[J].Journal of Engineering Thermophysics,2001,22(3):363-366.(in Chinese)
[8] Tsuji Y,Tanaka T,Ishida T.Lagrangian numerical simulation of plug flow of cohesionless particles in a horizontal pipe[J].Powder Technology,1992,71(3):239-250.
[9] 焦红光,李靖如,赵继芬,等.关于离散元法计算参数的探讨[J].河南理工大学学报:自然科学版,2007,26(1):88-93.
Jiao Hongguang,Li Jinru,Zhao Jifen,et al.Discussion on the calculation parameters of discrete element method[J].Journal of Henan Polytechnic University:Natural Science,2007,26(1):88-93.(in Chinese)
[10] 杨洋,唐寿高,王居林.颗粒离散元法中阻尼系数、刚度系数和时步的选取方法[J].计算机辅助工程,2007,16(3):65-68.
Yang Yang,Tang Shougao,Wang Julin.Selection methods on damping coefficient,stiffness coefficient and time step in granular distinct element method[J].Computer Aided Engineering,2007,16(3):65-68.(in Chinese)
[11] Cundall P A,Strack O D.A discrete numerical model for granular assembles[J].Geotechnique,1979,29(1):47-65.
[12] 张洪文.31-25-7型汽轮机后汽缸安装质量对机组振动的影响[J].四川电力技术,1997(增刊1):1-5.
Zhang Hongwen.Influence of erection quality of rear cylinder of 31-25-7 steam turbine on set vibration[J].Power Technology of Sichuan,1997(sup 1):1-5.(in Chinese)
[13] Lemos J V.A hybrid distinct element computational model for half plane[D].Twin Cities,USA:University of Minnesota,1983.

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