the period of July and August is its strongest stage during which the eddy extends to 112.50°E and its maximum tangential velocity reaches 30 cm/s,and the eddy center moves northeastward to(110.50°E,(13.25)°N);
In the present paper, using numerical method mainly and experiment partially, the authors tried to analyze and discuss the generation and the evolution of secondary flow vortices in turbine blade passage.
The numerical results for driven cavity flow show good agreement with the results in literature not only for steady laminar solution when Re≤5000 on coarse meshes (e.g. 64×64. or. 128×128)but for unsteady periodic solution when Re = 7500 and Re = 10000 on 256×256 meshes for the appearance of more secondary vortices in the flow field.
From barotropic quasi-geostrophic vorticity equation, the exchanges of energy and enstrophy for quasi-resonant triad waves are analysed under conditions of k1+k2+k3 = Δk,l1 + l2 + l3= 0 and w1 + w2 + w3 = 0. When Δk is small, the total energy and enstrophy are approximately conservative.
The vortex-like excitations detected by Nernst signals in high-Tc superconductors
Experimental demonstration of vortex pancake in high temperature superconductor
In order to demonstrate the existence of the vortex pancake in high temperature superconductor experimentally, a configuration in which the current and voltage electrodes lies separately on the top and bottom surface is used.
The E-j relation obtained with this electrodes spatial configuration is different from the expected E-j behavior of the stiff vortex line model.
Thus, the current results support the existence of the vortex pancake in high temperature superconductor.
A dynamic procedure based on the scale-similarity hypotheses for large-eddy simulation
Current dynamic procedures in large-eddy simulation treat the two subgrid-scale stresses in the Germano identity with the same subgrid base model.
The new procedure is tested in the large-eddy simulation of a lid-driven cavity flow at Reynolds number of 10,000.
Unlike , the disturbed motion is considered which has a character of eddy magneto-gyroscopic waves.
Gravitational and restoring aerodynamic moments were taken into account in the equations of satellite's motion, as well as a dissipative moment from eddy currents induced in the shell of the satellite by the Earth's magnetic field.
Pinning of vortices for the ginzburglandau functional with variable coefficient
In this paper, it is proved that for any given d non-degenerate local minimum points of the renormalized energy of weighted Ginzburg-Landau equations, one can find solutions to the Ginzburg-Landau equations whose vortices tend to these d points.
The maximum flow velocity is usually related to the deeper water depth, but irregular water column distribution of flow current velocity results often from the vortices' current associated with river knots.
Large scale vortices appear on the diffuser vane under larger incidence.
It is shown that the formation of the cavern may be related to the attenuation of the electrostatic plasma instability and plasma vortices in the upper ionosphere at the geomagnetic equator.