The Effect of Varying Viscosity in Turbulent Channel Flow

@article{Leite2020TheEO,
  title={The Effect of Varying Viscosity in Turbulent Channel Flow},
  author={Victor Coppo Leite and Elia Merzari},
  journal={Volume 3: Computational Fluid Dynamics; Micro and Nano Fluid Dynamics},
  year={2020}
}
  • V. Leite, E. Merzari
  • Published 9 June 2020
  • Physics
  • Volume 3: Computational Fluid Dynamics; Micro and Nano Fluid Dynamics
In this article we examine channel flow subject to spatially varying viscosity in the streamwise direction. The Reynolds number is imposed locally with three different ramps. The setup is reminiscent of transient channel flow, but with a space-dependent viscosity rather than a time dependent viscosity. It is also relevant to various applications in nuclear engineering and in particular in test reactors, where the viscosity changes significantly in the streamwise direction, and there is a… 
Turbulent Channel Flow With Spatially Dependent Viscosity: A Numerical Study
In this study, we examine in detail the effect of spatially dependent viscosity on wall-bounded flow. For this purpose, direct numerical simulations (DNS) are performed considering a channel flow
A New RANS Correction to Account for Varying Viscosity Effects
  • V. Leite, E. Merzari
  • Physics
    Volume 1: Aerospace Engineering Division Joint Track; Computational Fluid Dynamics
  • 2021
It has previously been shown that by increasing the Reynolds number across a channel by spatially varying the viscosity does not cause an immediate change in the size of turbulent structures and a

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