Double diffusive effects on pressure-driven miscible displacement flows in a channel
نویسندگان
چکیده
منابع مشابه
Miscible density-stable displacement flows in inclined tube
We study density-stable laminar miscible displacement flow of two iso-viscous Newtonian fluids in an inclined pipe (diameter D̂). We present a wide range of novel experimental results. We illustrate the non-monotone relation in displacement efficiency at the density difference moves from positive (density unstable) to negative (density stable), the efficiency being minimal for iso-dense fluids. ...
متن کاملMiscible density-unstable displacement flows in inclined tube
Miscible density-unstable displacement flows in inclined tube K. Alba,1 S. M. Taghavi,2 and I. A. Frigaard1,3,a) 1Department of Mechanical Engineering, University of British Columbia, 6250 Applied Science Lane, Vancouver, British Columbia V6T 1Z4, Canada 2Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109-2136, USA 3Department of Mathematics, University of Bri...
متن کاملStatistical Estimates for Channel Flows Driven by a Pressure Gradient
Abstract. We present rigorous estimates for some physical quantities related to turbulent and non-turbulent channel flows driven by a uniform pressure gradient. Such results are based on the concept of stationary statistical solution, which is related to the notion of ensemble average for flows in statistical equilibrium. We provide a lower bound estimate for the mean skin friction coefficient ...
متن کاملNumerical Investigation of Double- Diffusive Mixed Convective Flow in a Lid-Driven Enclosure Filled with Al2O3-Water Nanofluid
Double-diffusive mixed convection in a lid-driven square enclosure filled with Al2O3-water is numerically investigated. Two-dimensional nonlinear governing equations are discretized using the control volume method and hybrid scheme. The equations are solved using SIMPLER algorithm. The results are displayed in the form of streamlines, isotherms, and iso-concentrations when the Richardson number...
متن کاملAnalytical and variational numerical methods for unstable miscible displacement flows in porous media
The miscible displacement of one fluid by another in a porous medium has received considerable attention in subsurface, environmental and petroleum engineering applications. When a fluid of higher mobility displaces another of lower mobility, unstable patterns referred to as viscous fingering may arise. Their physical and mathematical study has been the object of numerous investigations over th...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Fluid Mechanics
سال: 2012
ISSN: 0022-1120,1469-7645
DOI: 10.1017/jfm.2012.439