Modeling of heat and high viscous fluid distributions with variable viscosity in a permeable channel


  • J Hona



The flow field under study is characterized by velocity components, temperature and pressure in non-dimensional formulation. The flow is driven by suction through the horizontal channel with permeable walls fixed at different temperatures. In order to ascertain a better understanding of the dynamic behavior of the flow, the Navier-Stokes equations and the energy equation are solved concurrently applying a similarity transformation technique. The hydrodynamic structures obtained from the numerical integration include flow reversal or backward flow, collision zones due to the coexistence of wall suction and flow reversal inside the channel, the inflection through temperature distribution, the growth of thermal gradients near the walls, and the sensitivity of normal pressure gradients to the difference of temperatures at boundaries. These hydrodynamic structures are investigated considering the influences of the Péclet number P and the sensitivity of viscosity to thermal variations α which are the main control parameters of the problem.


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How to Cite

Hona, J. (2015) “Modeling of heat and high viscous fluid distributions with variable viscosity in a permeable channel”, The International Journal of Multiphysics, 9(4), pp. 341-360. doi: 10.1260/1750-9548.9.4.341.