Effect of double-diffusive convection with cross gradients on heat and mass transfer in a cubical enclosure with adiabatic cylindrical obstacles
TLDR
In this article, the authors investigate natural convection driven by a horizontal temperature gradient and a vertical concentration gradient in fluid-filled enclosures with obstructions inside it, where nine adiabatic and impermeable cylinders are placed, occupying 30% of the domain volume.About:
This article is published in International Journal of Heat and Fluid Flow.The article was published on 2020-06-01 and is currently open access. It has received 12 citations till now. The article focuses on the topics: Rayleigh number & Natural convection.read more
Citations
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Numerical investigation of double-diffusive natural convection in a staggered cavity with two triangular obstacles
TL;DR: In this paper, the authors investigated double-diffusive natural convection in a complex enclosure containing two equilateral triangular obstacles, where the triangles and the horizontal walls are isolated, while the left and right vertical walls are considered at high and low temperatures and concentrations, respectively.
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Maxwell Nanofluid Flow over an Infinite Vertical Plate with Ramped and Isothermal Wall Temperature and Concentration
TL;DR: In this paper, the authors investigated how heat and mass transfer impacts the unsteady incompressible flow of the Maxwell fluid and found that adding molybdenum disulfide nanoparticles to the engine oil increased the heat transfer up to 12.899%.
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Numerical investigation of double diffusion heat flux model in Williamson nanofluid over an exponentially stretching surface with variable thermal conductivity
TL;DR: In this paper , the Williamson nanofluid flow over an exponentially stretched surface with variable thickness was examined and the Cattaneo-Christov double diffusion (CCDD) heat flux model was applied while examining two cases of heat transfer, i.e., prescribed exponential surface temperature (PEST) and prescribed exponential heat flux (PEHF).
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Effect of packing height and location of porous media on heat transfer in a cubical cavity: Are extended Darcy simulations sufficient?
Manu Chakkingal,Sabino Schiavo,Iman Ataei-Dadavi,Mark J. Tummers,Chris R. Kleijn,Sasa Kenjeres +5 more
TL;DR: In this article, the authors numerically investigate natural convection in a bottom-heated top-cooled cavity, fully and partially filled with adiabatic spheres arranged in a Simple Cubic Packing (SCP) configuration.
References
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Boundary layer theory
TL;DR: The flow laws of the actual flows at high Reynolds numbers differ considerably from those of the laminar flows treated in the preceding part, denoted as turbulence as discussed by the authors, and the actual flow is very different from that of the Poiseuille flow.
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The validity of the boussinesq approximation for liquids and gases
Donald D. Gray,Aldo Giorgini +1 more
TL;DR: In this paper, a new method for obtaining approximate equations for natural convection flows is presented, which allows the specification of the conditions under which the traditional Boussinesq approximation applies to a given Newtonian liquid or gas.
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Double-diffusive convection
TL;DR: In this paper, the authors present a rather personal view of the important developments in double-diffusive convection, a subject whose evolution has been the result of a close interaction between theoreticians, laboratory experimenters and sea-going oceano-graphers.
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Thermal convection for large Prandtl numbers
Siegfried Grossmann,Detlef Lohse +1 more
TL;DR: The Rayleigh-Bénard theory is extended towards very large Prandtl numbers Pr and the Nusselt number Nu is found here to be independent of Pr, however, for fixed Rayleigh numbers Ra a maximum in the Nu(Pr) dependence is predicted.
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Boundary layer structure in turbulent thermal convection and its consequences for the required numerical resolution
TL;DR: In this paper, the authors derived a lower bound estimate for the minimum number of computational mesh nodes required to conduct accurate numerical simulations of moderately high (BL-dominated) turbulent Rayleigh-Benard (RB) convection, in the thermal and kinetic boundary layer (BL) close to the bottom and top plates.
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