Nonlinear Rupture of Thin Micropolar Liquid Film under a Magnetic Field

P. J. Cheng, C. K. Chen, Y. C. Wang, M. C. Lin, C. K. Yang

研究成果: Article同行評審

摘要

This paper investigates the rupture problem of a thin micropolar liquid film under a magnetic field on a horizontal plate, using long-wave perturbation to resolve nonlinear evolution equations with a free film interface. The governing equation is resolved using a finite difference method as part of an initial value problem for spatial periodic boundary conditions. The effect of a micropolar liquid under a magnetic field on the nonlinear rupture mechanism is studied in terms of the micropolar parameter, R, the Hartmann constant, m and the initial disturbance amplitude, H 0. Modeling results indicate that the R, m and H 0 parameters strongly affect the film flow. Enhancing the micropolar and magnetic effects is found to delay the rupture time. In addition, the results show that the film rupture time increases as the values of initial disturbance magnitude decrease. The micropolar and magnetic parameters indeed play a significant role in the film flow on a horizontal plate. Moreover, the optimum conditions can be found to alter stability of the film flow by controlling the applied magnetic field.

原文English
頁(從 - 到)249-256
頁數8
期刊Journal of Mechanics
33
發行號2
DOIs
出版狀態Published - 2017 四月 1

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanical Engineering
  • Applied Mathematics

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