Furthermore, the fluid flow in the 2D central plane of continuous slab casting mold is computed, especially the evolution with time of flow with high Reynolds number is simulated, and the simulated flow patterns are found to be in excellent agreement with the previous experiment results, which show that the turbulent flow with high Reynolds number inside the mold is swirly, asymmetric and unsteady.

The results from theoretical analysis and OPERA program simulation show that the kicker magnet satisfies all requirements of BEPCⅡ storage ring. In the range of Δ x =±20mm, the field uniformity is ±0.6% in the central plane, ±0.7% in the y =5mm plane and ±2.9% in the y =10mm plane.

In contrast, the results of standard k-εturbulence model show the CVP was exactly symmetrical about the central plane of the jet, the shear layer vortical roller and the upright vortex in the wake were not observed.

On the central plane, the infrared reflectivity of vegetation increases with the increase of view zenithangle, and the red reflectivity decreases slightly;

structure strain field and sedimentarymatter source etc. ② Ⅱ grade Contemporaneous split screen pattern activity have controlledevery subsidence central plane migration in the region of Wennan,the activityof Ⅱ grade contemporaneous split and associated fault have formed 6 kindsoil-gas reservoir pattern or compose;

The properties of the hot electron ring have been measured with an X-ray detector on the simple mirror device MM-2.The hot electron temperatureis about 140 170 keV.the radius of the hot electron ring is 7 cm and its thickness about 4 cm. The axial boundary of the ring extends from Z=±10cm to ±20crn. where Z is the distance to the central plane of the device.

Taking displacement function and similar displacement function of central plane of the plate as independent variables, a motion equation of anisotropy plate with two independent displacement functions is set up. Using this equation to the analysis of three layers plate with plance truss continuous transformation, a good result is obtained.

The central plane of the cavity is perpendicular to the axis of the cylinder, and the cylinder is subjected to bending.

It is observed that in the theory of Cosserat fluids the curvature of the streamlines in the central plane increases and the motion is slower in the cross-section of the pipe.

The paths of the particles in the central plane and the projection of the streamlines on the cross-section of the pipe are compared with those of a Newtonian fluid.

It is found that the velocities of the gas and particles are maximum in the central plane of the channel.

The velocity fields, which were measured, using a photographic technique were thought to model the electromagnetically driven component of the velocity field in the central plane of the slag phase in ESR systems.

In this paper, we used the more rigorous general relativistic viscose hydrodynami-cal equation to discuss and calculate the temperature profile in the accretion disk around a Kerr black hole. We argued that in the accretion disk around a black hole, it is significant in principle for considering the release of the internal energy of the accreting materials. Taking the effect of internal energy of the accreting materials into account and using the classical theory, we have shown that the occurrence of solution...

In this paper, we used the more rigorous general relativistic viscose hydrodynami-cal equation to discuss and calculate the temperature profile in the accretion disk around a Kerr black hole. We argued that in the accretion disk around a black hole, it is significant in principle for considering the release of the internal energy of the accreting materials. Taking the effect of internal energy of the accreting materials into account and using the classical theory, we have shown that the occurrence of solution of the abnormal temperature profile around a Schwarzschild black hole is possible. In this consistent solution, the temperature profile are not always monotonic, i.e. the temperature is not always a monotonic descending function of the raduis r, not as that of the usual case, but there exists probably a temperature profile with maximum at the certian raduis, in consequence it is existed a cooling region.In order to discuss this subject further, it is natural logically development to using the more rigorous relativistic hydrodynamical equation. Therefore, we will follow the general methods by Bardeen, J. M., Press, W. H., Teukolsky, S. A., and Novikov, I. D.. Thome, K. S. et al. to establish a possible model of accretion disk for the Kerr black hole. Our fundamental assumptions are: (1) The central plane of the disk coincides with the equatorial plane of the black hole. The disk is a perfectly aixal-symmtrie and is thin; (2) The orbital motions of the materials in the disk are controled mainly by the gravitational pull of the hole so that the orbits are very nearly geodesic, while the component of the velocity in the radial direction is very small and the motions in the direction normal to the disk may be neglected; (3) The dominate pressure is the gas pressure, but the radiative pressure is negligble; (4) The radial heat transfer is very small in comparison with the energy radiated from the surface of the disk; (5) The internal energy of the accreting materials in the disk must be calculated. Under these assumptions, our main conclusions obtained are: (1) If the radiative mechanism of the materials in the disk is the black-body radiation, the result is coincidence with the classical theory, whatever kind of the viscose law be; (2) For free-free radiation, the temperature profile is in substance just like the classical case. Thus it is further demonstrated theoretically that there exists indeed such a possible accretion disk around the Kerr black hole which has a fast cooling ring region just laid inside the temperature maximum as its main character. In this cooling ring region, there are probably some pecularities which have not existed for the usual temperature profile.

The paper presents a derivation of the locus equation of rectangular waveguide of which index distribution function is n(x) = no (1 - 1/2 Ax3). The locus of light rays can be described with logarithmic function as incidence plane is the central plane having refraction index no, and tne locus of light rays can be indicated with arc tangent function as incidence plane is in edge which has index of n(X). When tangential plane crosses no plane, the locus of paraxial rays locating in tangential...

The paper presents a derivation of the locus equation of rectangular waveguide of which index distribution function is n(x) = no (1 - 1/2 Ax3). The locus of light rays can be described with logarithmic function as incidence plane is the central plane having refraction index no, and tne locus of light rays can be indicated with arc tangent function as incidence plane is in edge which has index of n(X). When tangential plane crosses no plane, the locus of paraxial rays locating in tangential plane is a well-known sinuous function.

Three velocity components of the turbulent separation region downstream of the backward facing step in a 2-D duct was measured by a dual-differential frequency shift LDV system. The flow model has a step height of 20mm with the expansion ratio of 2-1 and aspect ratio of 3:2. The experimental Reynolds number was 5700.The results showed the shape of 3 D separation region and demonstrated a pair of transverse vortices existing in the region just behind the step. The reattachrrient length is the longest in the central...

Three velocity components of the turbulent separation region downstream of the backward facing step in a 2-D duct was measured by a dual-differential frequency shift LDV system. The flow model has a step height of 20mm with the expansion ratio of 2-1 and aspect ratio of 3:2. The experimental Reynolds number was 5700.The results showed the shape of 3 D separation region and demonstrated a pair of transverse vortices existing in the region just behind the step. The reattachrrient length is the longest in the central plane and decreasing in the planes gradually closed to the side wall. Photographs obtained by the laser visualization technique showed the flow patterns which are of well agreement with the LDV measurements.