探讨激振频率和容器宽度对颗粒层中对流的影响

孔维姝;胡林;李世雄;张兴刚;白光富;胡云;赵智洋;贺沙白

振动与冲击 ›› 2010, Vol. 29 ›› Issue (4) : 88-91.

PDF(1640 KB)
PDF(1640 KB)
振动与冲击 ›› 2010, Vol. 29 ›› Issue (4) : 88-91.
论文

探讨激振频率和容器宽度对颗粒层中对流的影响

  • 孔维姝; 胡林; 李世雄; 张兴刚; 白光富; 胡云; 赵智洋; 贺沙白
作者信息 +

Probing that the vibrational frequency and the container widthinfluence on the convection in vibrated granular beds

  • Kong Wei-Shu; Hu Lin; Li Shi-Xong; Zhang Xing-Gang ;
    Bai guang-fu; Hu Yun; Zhao Zhi-Yang; He Sha-Bai
Author information +
文章历史 +

摘要

竖直振动激励下准二维颗粒层中对流运动受激振频率f和容器宽度L的影响, 实验结果表明,对流卷的个数和对流运动的方向强烈地依赖于激振频率而对容器宽度不太敏感. 对流运动的强度受激振频率f和容器宽度L的影响都较大, 当容器宽度一定时,对流运动的强度随激振频率振荡变化. 当频率一定时,容器宽度L存在一个临界值Lc,当LLc时,随着L的增加,对流运动的强度反而减小.

Abstract



The vibrational frequency f and the container width L influence on the convective motion of granules in vertically vibrated quasi-two-dimensional vessel.The experimental result shows: The number of convection rolls and the direction of the convective motion is strongly dependent on the vibrational frequency , and to a lesser extent on container width. The vibrational frequency and the container width both strongly influence on the intensity of convection. At fixed L and the intensity of convection is oscillatory change as f. At fixed f and there is a critical container width Lc . The intensity of convection is increased when L< Lc,and the intensity of convection is decreased when L> Lc.

关键词

颗粒物质 / 对流 / 能量耗散

Key words

granular matter / convection / friction

引用本文

导出引用
孔维姝;胡林;李世雄;张兴刚;白光富;胡云;赵智洋;贺沙白. 探讨激振频率和容器宽度对颗粒层中对流的影响[J]. 振动与冲击, 2010, 29(4): 88-91
Kong Wei-Shu;Hu Lin;Li Shi-Xong;Zhang Xing-Gang;Bai guang-fu;Hu Yun;Zhao Zhi-Yang;He Sha-Bai. Probing that the vibrational frequency and the container widthinfluence on the convection in vibrated granular beds[J]. Journal of Vibration and Shock, 2010, 29(4): 88-91

PDF(1640 KB)

Accesses

Citation

Detail

段落导航
相关文章

/