Experimental Observation of Kink in a Perfect Bidimensional Granular System |
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作者姓名: | 张鹏 缪国庆 黄锴 恽毅 魏荣爵 |
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作者单位: | StateKeyLaboratoryofModernAcousticsandInstituteofAcoustics,NanjingUniversity,Nanjing210093 |
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摘 要: | The kink formation in a vertical vibrated granular layer has been widely studied in three-dimensional systems, but there are few if any experimental reports on bidimensional granular layers. We report the kink formation newly found in a perfect bidimensional granular system. We measure the range of the driving frequencies and dimensionless accelerations for kinks. Furthermore, we observe a heaping process, which is caused by co-operative action of the kink-associated convection and the sidewall=associated convection.
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关 键 词: | 二维粒状系统 三维空间 无量纲加速度 对流技术 |
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