نتایج جستجو برای: cavity flow
تعداد نتایج: 556238 فیلتر نتایج به سال:
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...
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...
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...
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...
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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