[PDF][PDF] On the effects of porous wall on transitional and turbulent channel flows
M Quadrio, M Rosti, D Scarselli… - … ETC14, available at …, 2013 - researchgate.net
Proceedings of European Turbulence Conference ETC14, available at …, 2013•researchgate.net
… We intend to further extend the above stability studies and explore the non-modal
characteristics of the flow, in the hope of shedding further light on the transition process. At
the same time, we develop and present a Direct Numerical Simulation (DNS) solver to
describe the flow over the porous walls when the Reynolds number Re increases and the
turbulent regime takes place. We notice that turbulence over the porous material develops
at lower Re compared to the standard Poiseuille flow over solid walls. …
characteristics of the flow, in the hope of shedding further light on the transition process. At
the same time, we develop and present a Direct Numerical Simulation (DNS) solver to
describe the flow over the porous walls when the Reynolds number Re increases and the
turbulent regime takes place. We notice that turbulence over the porous material develops
at lower Re compared to the standard Poiseuille flow over solid walls. …
Abstract
We consider the pressure-driven, incompressible flow in a channel bounded by two layers of porous material. The flow is analysed first in terms of its non-modal stability characteristics; then results for the DNS of the Poiseuille flow in the turbulent regime are shown.
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