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Stability analysis of whirling composite shells partially filled with two liquid phases

Sahebnasagh, M ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1007/s12206-017-0408-6
  3. Abstract:
  4. In this paper, the stability of whirling composite cylindrical shells partially filled with two liquid phases is studied. Using the first-order shear shell theory, the structural dynamics of the shell is modeled and based on the Navier-Stokes equations for ideal liquid, a 2D model is developed for liquid motion at each section of the cylinder. In steady state condition, liquids are supposed to locate according to mass density. In this study, the thick shells are investigated. Using boundary conditions between liquids, the model of coupled fluid-structure system is obtained. This coupled fluid-structure model is employed to determine the critical speed of the system. The effects of the main variables on the stability of the shell are studied and the results are investigated. © 2017, The Korean Society of Mechanical Engineers and Springer-Verlag Berlin Heidelberg
  5. Keywords:
  6. Biphasic liquid mixtures ; Whirling composite shells ; Convergence of numerical methods ; Cylinders (shapes) ; Density of liquids ; Fluid structure interaction ; Fluids ; Liquids ; Rotation ; Shells (structures) ; Stability ; Structural dynamics ; Composite cylindrical shell ; Composite shell ; First-order shears ; Flow induced vibrations ; Fluid-structure model ; Fluid-structure systems ; Liquid mixture ; Steady-state condition ; Navier stokes equations
  7. Source: Journal of Mechanical Science and Technology ; Volume 31, Issue 5 , 2017 , Pages 2117-2127 ; 1738494X (ISSN)
  8. URL: https://link.springer.com/article/10.1007%2Fs12206-017-0408-6