نتایج جستجو برای: cavity flow

تعداد نتایج: 556238  

The buoyancy-driven fluid flow and heat transfer in a square cavity with partially active side walls filled with Cu-water nanofluid is investigated numerically. The active parts of the left and the right side-walls of the cavity are maintained at temperatures Th and Tc, respectively, with Th>Tc. The enclosure’s top and bottom walls, as well as, the inactive parts of its side walls are kept insu...

Journal: :Computer Physics Communications 2011
Osamu Sano

Recent investigations on the collapse and growth of macroscopic cavity regions in a granular material due to viscous flow have revealed the possible mechanism of the occurrence of natural disasters such as landslides, collapses of riverbanks and cliffs. We have already shown both theoretically and experimentally a significant effect of flow concentration into the macroscopic cavity regions in a...

Journal: :Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 2011

Journal: :Journal of Fluid Mechanics 2021

The linear stability of the incompressible flow in an infinitely extended cavity with rectangular cross-section is investigated numerically. basic driven by a lid which moves tangentially, but at yaw respect to edges cavity. As result, superposition classical recirculating two-dimensional lid-driven orthogonal wall-bounded Couette flow. Critical Reynolds numbers computed analysis are found be s...

Journal: :Quarterly of Applied Mathematics 1950

Journal: :Journal of Intelligent Material Systems and Structures 2021

Journal: :Physics of Fluids 2013

Journal: : 2023

The paper considers the formation of a ventilated cavity in flow water behind streamlined body. Numerical modeling two-phase is based on Volume Fluid (VOF) method. system equations for water-air mixture consists Navier-Stokes equation, continuity energy conservation and diffusion state (ideal gas Boussinesq approximation). This closed by Smagorinsky model turbulence (the large eddies). geometry...

Journal: :TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B 2000

BABAEI R., , DADASHZADEH M., , DAVAMI P., , HOMAYONIFAR P., , SHAHINFAR S., ,

In the present study a Finite Difference Method has been developed to model the transient incompressible turbulent free surface fluid flow. A single fluid has been selected for modeling of mold filling and The SOLA VOF 3D technique was modified to increase the accuracy of simulation of filling phenomena for shape castings. For modeling the turbulence phenomena k-e standard model was used. In or...

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