[1] WEI J, FU S N, TANG J Y, et al. Chinese Physics C, 2009, 33(11): 10331042. doi:  10.1088/1674-1137/33/11/021
[2] GABRIEL T A, HAINES J R, MCMANAMY T J. Journal of Nuclear Materials, 2003, 318: 0113. doi:  10.1016/s0022-3115(03)00010-2
[3] OYAMA Y. Nucl Instr and Meth A, 2006, 562(2): 548552. doi:  10.1016/j.nima.2006.02.139
[4] LINDROOS M, BOUSSON S, CALAGA R, et al. Nucl Instr and Meth B, 2011, 269(24): 32583260. doi:  10.1016/j.nimb.2011.04.012
[5] BAUER G S. Journal of Nuclear Materials, 2010, 398(1-3): 1927. doi:  10.1016/j.jnucmat.2009.10.005
[6] YANG L, ZHAN W L. Science China Technological Sciences, 2015, 058(010): 17051711. doi:  10.1007/s11431-015-5894-0
[7] ZHAN W. ADS Programme and Key Technology[C]. The 4th International Particle Accelerator Conference(IPAC 2013). USA: Curran Associates, Inc, 2014: 4010.
[8] MASSOUDI M, PHUOC T X. Powder Technology, 2007, 175(3): 146162. doi:  10.1016/j.powtec.2007.01.031
[9] GRUJICIC M, PANDURANGAN B, BELL W C, et al. Journal of Materials Engineering and Performance, 2012, 21(2): 167179. doi:  10.1007/s11665-011-9954-8
[10] TAO K W, ZHANG Y L, CAI H J, et al. Nucl Instr and Meth A, 2019, 942: 6. doi:  10.1016/j.nima.2019.162401
[11] GOLDHIRSCH I. Annual Review of Fluid Mechanics, 2003, 35(1): 267293. doi:  10.1007/978-1-4612-0513-5_2
[12] FORTERRE Y, POULIQUEN O. Journal of Fluid Mechanics, 2003, 486: 2150. doi:  10.1017/S0022112003004555
[13] LOUGE M Y, KEAST S C. Physics of Fluids, 2001, 13(5): 12131233. doi:  10.1063/1.1358870
[14] RICHMAN M W, MARCINIEC R. Journal of Applied Mechanics, 1990, 57(4): 10361043. doi:  10.1115/1.2897623
[15] LOUGE M Y. Physical Review E, 2003, 67(6): 061303. doi:  10.1103/physreve.67.061303
[16] QI J, LI K C, JIANG H, et al. International Journal of Computer Science and Engineering, 2015, 11(3): 330337. doi:  10.1504/IJCSE.2015.072653
[17] TIAN Y, LAI J, YANG L, et al. A Heterogeneous CPU-GPU Implementation for Discrete Elements Simulation with Multiple GPUs[C]. International Joint Conference on Awareness Science and Technology & Ubi-Media Computing (iCAST-UMEDIA). IEEE, 2013: 547552.
[18] JOHNSON K L. Contact Mechanics[M]. Cambridge: Cambridge Iniversity Press. 1987.
[19] CUNDALL P A, STRACK O D L. Geotechnique, 1980, 30(3): 331336. doi:  10.1680/geot.1980.30.3.331
[20] ALLEN M P, TILDESLEY D J. Computer Simulation of Liquids[M]. New York: Oxford University Press. 1989.
[21] LIN P, ZHANG S, QI J, et al. Physica a-Statistical Mechanics and Its Applications, 2015, 417: 2940. doi:  10.1016/j.physa.2014.09.032
[22] WEINHART T, THORNTON, A R, LUDING S, et al. Granular Matter, 2012, 14(4): 531552. doi:  10.1007/s10035-012-0355-y
[23] BORZSONYI T, ECKE R E. Physical Review E, 2006, 74(6). doi:  10.1103/PhysRevE.74.061301
[24] HOLYOAKE A J, MCELWAINE J N. Journal of Fluid Mechanics, 2012, 710: 3571. doi:  10.1017/jfm.2012.331
[25] RYCROFT C H, GREST G S, LANDRY J W, et al. Physical Review E, 2006, 74(2): 021306. doi:  10.1103/PhysRevE.74.021306
[26] DELANNAY R, LOUGE M, RICHARD P, et al. Nature Materials, 2007, 6(2): 99108. doi:  10.1038/nmat1813
[27] BRODU N, RICHARD P, DELANNAY R. Physical Review E, 2013, 87(2): 022202. doi:  10.1103/physreve.87.022202
[28] PONT S C D, FISCHER R, GONDRET P, et al. Physical Review Letters, 2005, 94(4): 048003. doi:  10.1103/PhysRevLett.94.048003
[29] WAN J F, ZHANG S, TIAN Y, et al. Journal of Nuclear Science and Technology, 2016: 17. doi:  10.1080/00223131.2016.1164636
[30] SILBERT L E, LANDRY J W, GREST G S. Physics of Fluids, 2003, 15(1): 0110. doi:  10.1063/1.1521719