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- W2365380281 abstract "Two-dimensional numerical simulation based on the spin model of turbulence was carried out for the incompressible fluid flow in square cavity.The discrete representation of the general form was obtained at staggered grid with the Finite Volume Method.The calulation was done using the SIMPLEC algorithm.The discrete schemes of convective term were dealt with deferred correction method of quadratic upwind interpolation of convective kinematics.two-dimensional TDMA was used to get the iteration solve,and boundary condition was delt with by the method of Block finally.And comparing with that of classical theory—the Navier-Stokes(N-S) equations,the following conclusions are got that,according to the N-S equations,the inner fluid just rotates as a rigid body with the rotating square cavity,but the spin model of turbulence predicts such a flow has nontrivial property and instability,namely,the cohesion of fluid is not so strong to make the fluid rotate as a rigid body with the solid boundary,namely,the rotating boundary must induce microscale dissipative eddy in fluid,such eddy evolves unsteady,and organizes topological defects(vortex intensity) chequered with positive and negative space near the solid wall,and these orientation singularities in fluid are sensitive to velocity disturbance which is ubiquitous in real flow,and can stimulate the amplification of disturbance to large scale vortex motion." @default.
- W2365380281 created "2016-06-24" @default.
- W2365380281 creator A5058934340 @default.
- W2365380281 date "2009-01-01" @default.
- W2365380281 modified "2023-10-07" @default.
- W2365380281 title "Numerical Simulation of Two Dimensional Rotating Flow In Square Cavity Based on Spin Model of Turbulence" @default.
- W2365380281 hasPublicationYear "2009" @default.
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