Dynamic X-ray study of the effective temperature in a three-dimensional granular gas

ORAL

Abstract

We carried out a high-speed x-ray imaging study of the effective temperature of a highly agitated three-dimensional (3D) granular gas in the tracer limit using tracing particles with various densities, restitution coefficients, and sizes. Both the tracing and background particles satisfy non-Gaussian velocity distributions, in addition to an absence of energy equipartition between translational and rotational degrees of freedom.

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Authors

  • Yujie Wang

    • Department of Physics, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, China

  • Bingquan Kou

    • Department of Physics, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, China

  • Haohua Sun

    • Department of Physics, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, China

  • Yixin Cao

    • Department of Physics, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, China

  • Chengjie Xia

    • Department of Physics, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, China

  • Xiaodan Zhang

    • Department of Physics, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, China

  • Xianghui Xiao

    • X-ray Science Division, Argonne National Laboratory, 9700 South Cass Avenue, IL, USA

  • Kamel Fezzaa

    • X-ray Science Division, Argonne National Laboratory, 9700 South Cass Avenue, IL, USA