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Chin. Phys. B, 2018, Vol. 27(12): 124704    DOI: 10.1088/1674-1056/27/12/124704

Numerical simulations of dense granular flow in a two-dimensional channel:The role of exit position

Tingwei Wang(王廷伟), Xin Li(李鑫), Qianqian Wu(武倩倩), Tengfei Jiao(矫滕菲), Xingyi Liu(刘行易), Min Sun(孙敏), Fenglan Hu(胡凤兰), Decai Huang(黄德财)
Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, China

Molecular dynamics simulations have been performed to elucidate the influence of exit position on a dense granular flow in a two-dimensional channel. The results show that the dense flow rate remains constant when the exit is far from the channel wall and increases exponentially when the exit moves close to the lateral position. Beverloo's law proves to be successful in describing the relation between the dense flow rate and the exit size for both the center and the lateral exits. Further simulated results confirm the existence of arch-like structure of contact force above the exit. The effective exit size is enlarged when the exit moves from the center to the lateral position. As compared with the granular flow of the center exit, both the vertical velocities of the grains and the flow rate increase for the lateral exit.

Keywords:  granular materials      dense granular flow      molecular dynamics simulations  
Received:  25 July 2018      Revised:  19 September 2018      Accepted manuscript online: 
PACS:  47.57.Gc (Granular flow)  
  45.70.Mg (Granular flow: mixing, segregation and stratification)  
  75.40.Mg (Numerical simulation studies)  

Project supported by the National Natural Science Foundation of China (Grant No. 11574153).

Corresponding Authors:  Decai Huang     E-mail:

Cite this article: 

Tingwei Wang(王廷伟), Xin Li(李鑫), Qianqian Wu(武倩倩), Tengfei Jiao(矫滕菲), Xingyi Liu(刘行易), Min Sun(孙敏), Fenglan Hu(胡凤兰), Decai Huang(黄德财) Numerical simulations of dense granular flow in a two-dimensional channel:The role of exit position 2018 Chin. Phys. B 27 124704

[1] Jaeger H M, Nagel S R and Behringer R P 1996 Rev. Mod. Phys. 68 1259
[2] Bursik M, Patra A, Pitman E B, Nichita C, Macias J L, Saucedo R and Girina O 2005 Rep. Prog. Phys. 68 271
[3] Denisov D V, Lörinca K A, Uhi J T, Dahmen K A and Schall P 2016 Nat. Commum. 7 10641
[4] Huang D C, Lu M, Sen S, Sun M, Feng Y D and Yang A N 2013 Eur. Phys. J. E 36 41
[5] Shi Q, Sun G, Hou M Y and Lu K Q 2007 Phys. Rev. E 75 061302
[6] Wang W G, Zhou Z Z, Zong J and Hou M Y 2017 Chin. Phys. B 26 044501
[7] Thomas C C and Durain D J 2015 Phys. Rev. Lett. 114 178001
[8] Gella D, Maza D, Zuriguel I, Ashour A, Arévalo R and Stannarius R 2017 Phys. Rev. Fluids 2 084304
[9] To K W, Lai P K and Pak H K 2000 Phys. Rev. Lett. 86 71
[10] Fortterre Y and Pouliquen O 2008 Ann. Rev. Fluid Mech. 40 1
[11] Hou M, Chen W, Zhang T, Lu K Q and Chan C K 2003 Phys. Rev. Lett. 91 204301
[12] Mathews J C and Wu W 2016 Powder Technol. 293 3
[13] Perlta J P, Aguirre M A, Géminard J C and Pugnalonis L A 2017 Powder Technol. 311 265
[14] Vanel L and Clément E 1999 Eur. Phys. J. B 11 525
[15] Qadir A, Shi Q F, Liang X W and Sun G 2010 Chin. Phys. B 19 034601
[16] Rubio-largo S M, Janda A, Maza D, Zuriguel I and Hidalgo R C 2015 Phys. Rev. Lett. 114 238002
[17] Zhang X Z, Zhang S, Yang G H, Lin P, Tian Y, Wan J F and Yang L 2016 Phys. Lett. A 380 1301
[18] Beverloo W A, Leniger H A and van de Velde J 1961 Chem. Eng. Sci. 15 260
[19] Janda A, Zuriguel I and Maza D 2012 Phys. Rev. Lett. 108 248001
[20] Benyamine M, Djermane M, Dalloz-Dubrujeaud B and Aussillous P 2014 Phys. Rev. E 90 032201
[21] Zhou Y, Ruyer P and Aussillous P 2015 Phys. Rev. E 92 062204
[22] Wang Y, Lu Y and Ooi J Y 2015 Powder Technol. 282 43
[23] Tang J and Behringer R P 2016 Euro Phys. Lett. 114 34002
[24] Xu C, Wang F L, Wang L P, Qi X S, Shi Q F, Li L S and Zheng N 2018 Powder Technol. 328 7
[25] Serrano D A, Medina A, Chanvarria R, Pliego M and Klapp J 2015 Powder Technol. 286 438
[26] Medina A, Andrade J, Córdova J A and Treviño C 2000 Phys. Lett. A 273 109
[27] Huang D C, Sun G and Lu K Q 2006 Phys. Rev. E 74 061306
[28] Huang D C, Sun G and Lu K Q 2011 Phys. Lett. A 375 3375
[29] Kuwabara G and Kono K 1987 Jpn. J. Appl. Phys. 26 1230
[30] Schäfer J, Dippel S and Wolf D E 1996 J. Phys. I 6 5
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