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According to smoothed particle hydrodynamics, we investigate numerically the micro-jets from grooved surfaces of different metals, where the velocities of jet head and material sources are discussed in detail. Our simulation results suggest that the jetting factor reaches its maximum at the half angle 45 degree, and the jetting factor reduces with the increase or decrease of the groove angle; also, the maximum velocity of jet shows a linear reduction with the increase of groove angel. Those results are consistent with the corresponding experimental results. The jetting material source and its dynamical process are analyzed. It is shown that with the increase of groove angel, the jet material sources transfer to the bottom of groove from two-side layer, while at the groove angel near 45 degree, a homogenous source layer throughout the groove comes into being. Finally, we further explain the jetting dynamics from different grooves by particle trajectory and its mechanical quantity history.
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Keywords:
- jet /
- shock /
- smoothed particle hydrodynamics
[1] Walsh J M, Shreffler R G, Willig F G 1953 J. Appl. Phys. 24 349
[2] Asay J R, Mix L P, Perry F C 1976 Appl. Phys. Lett. 29 284
[3] Asay J R 1976 Material Ejection from Shock-Loaded Free Surface of Aluminum and Lead Sandia Laboratories, SAND76-0542
[4] Zellner M B, Grover M, Hammerberg J E 2007 J. Appl. Phys. 102 013522
[5] Zellner M B, Mcneil W V, Hammerberg J E 2008 J. Appl. Phys. 103 123502
[6] Han C S 1989 Chin. J. High Press. Phys. 3 234 (in Chinese) [韩长生 1989 高压 3 234]
[7] Chen J, Jing F Q, Zhang J L, Chen D Q 2002 Acta Phys. Sin. 51 2386 (in Chinese) [陈军, 经福谦, 张景琳, 陈栋泉 2002 51 2386]
[8] Germann T C, Hammerberg J E, Holian B L 2004 AIP Conference Proceedings 706 285
[9] Chen Q F, Cao X L, Zhang Y, Cai L C, Chen D Q 2005 Chin. Phys. Lett. 22 3151
[10] Shao J L, Wang P, He A M, Qin C S 2012 Acta Phys. Sin. 61 184701 (in Chinese) [邵建立, 王裴, 何安民, 秦承森 2012 61 184701]
[11] Wang P, Qin C S, Zhang S D, Liu C 2004 Chin. J. High Press. Phys. 18 149 (in Chinese) [王裴, 秦承森, 张树道, 刘超 2004 高压 18 149]
[12] Wang P, Shao J L, Qin C S 2009 Acta Phys. Sin. 58 1064 (in Chinese) [王裴, 邵建立, 秦承森 2009 58 1064]
[13] Hu X M Research on Constitutive Model and Spallation of Material under Shock Load, GF-A, ZW-J-2002004 (in Chinese) [胡晓棉 冲击加载下材料本构及断裂研究 中国国防科学技术报告, GF-A, ZW-J-2002004]
[14] Frachet V, Elias P, Martineau J 1988 Shock Waves in Condensed Matter (North-Holland, Amsterdam) p235
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[1] Walsh J M, Shreffler R G, Willig F G 1953 J. Appl. Phys. 24 349
[2] Asay J R, Mix L P, Perry F C 1976 Appl. Phys. Lett. 29 284
[3] Asay J R 1976 Material Ejection from Shock-Loaded Free Surface of Aluminum and Lead Sandia Laboratories, SAND76-0542
[4] Zellner M B, Grover M, Hammerberg J E 2007 J. Appl. Phys. 102 013522
[5] Zellner M B, Mcneil W V, Hammerberg J E 2008 J. Appl. Phys. 103 123502
[6] Han C S 1989 Chin. J. High Press. Phys. 3 234 (in Chinese) [韩长生 1989 高压 3 234]
[7] Chen J, Jing F Q, Zhang J L, Chen D Q 2002 Acta Phys. Sin. 51 2386 (in Chinese) [陈军, 经福谦, 张景琳, 陈栋泉 2002 51 2386]
[8] Germann T C, Hammerberg J E, Holian B L 2004 AIP Conference Proceedings 706 285
[9] Chen Q F, Cao X L, Zhang Y, Cai L C, Chen D Q 2005 Chin. Phys. Lett. 22 3151
[10] Shao J L, Wang P, He A M, Qin C S 2012 Acta Phys. Sin. 61 184701 (in Chinese) [邵建立, 王裴, 何安民, 秦承森 2012 61 184701]
[11] Wang P, Qin C S, Zhang S D, Liu C 2004 Chin. J. High Press. Phys. 18 149 (in Chinese) [王裴, 秦承森, 张树道, 刘超 2004 高压 18 149]
[12] Wang P, Shao J L, Qin C S 2009 Acta Phys. Sin. 58 1064 (in Chinese) [王裴, 邵建立, 秦承森 2009 58 1064]
[13] Hu X M Research on Constitutive Model and Spallation of Material under Shock Load, GF-A, ZW-J-2002004 (in Chinese) [胡晓棉 冲击加载下材料本构及断裂研究 中国国防科学技术报告, GF-A, ZW-J-2002004]
[14] Frachet V, Elias P, Martineau J 1988 Shock Waves in Condensed Matter (North-Holland, Amsterdam) p235
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