An alternating group explicit iteration method of high accuracy is constructed for solving Burgers equation on the basis of physical sense of convection speed,and its stability and convergence are analysed by the linear method. Numeical results of the model problem are given.

Na2CO3 particles were utilized to trace the thermocapillary convection of Li2B4O7+ KNbO3 melt in a loop--like crucible. The thermocapillary convection velocity field beside the crucible inner edge was experimentally measured.

The temperature,volumetric water content and water table evaporation strength in varied air convection velocity are obtained by experimental measurement and numerical simulation.

It is shown that there exists an obvious anomaly in the overburden over a fault,and its distribution is affected by the thickness of the overburden,the width of the fault,the diffusion coefficient of radon,and the convection velocity of radon.

In the diffusion dominated case, the solution is similar in form to the diffusion of a source moving with the convection velocity and is modified by another convection term, which can be expanded into a power series of the convection parameter with coefficients composed of the generalized hypergeometric function series of the diffusion parameter.

6.The influencing factors on drying characteristic of paddy such as radiant intensity, mediatemperature, material initial moisture content, convective velocity, radiation distance and material layer thickness.

Studies results indicate that the radiant intensity, material initial moisture content , radiation distance and material layer thickness have strongly effect on the drying characteristic of paddy and convective velocity not only has a certain effect on drying characteristic of paddy but restraining high surface temperature media temperature material initial moisture content has no effect on the drying characteristic of paddy.

In convective boundary layer, parameterization of atmospheric turbulence diffu~ sion depends on W*, scale of convective velocity and zi,height of mixing layer.

The inversed difference of the density is -30 kg/m3. We also discuss the dynamic effect caused by the mantle plume in the convective state and compute the convective velocity and the shear stress which are 4.8-48 cm/a and 11-110 MPa respectively. This force plays an important role in the construction of the lithospheric stress field in middle and west China and the uplift of the Tibetan Plateau.

There exist the basic patterns that low-pressure convergence leads to uplifted motion and high-pressure divergence leads to down-flow in the atmospheric vortex motions. These basic states of 3-D velocity field can be described in terms of stream function and convective velocity potential decompositions, and there are spiral structures in theses motions.

According to the theory of flow diffusion and convection, three dimensional state equation of radon field is established for constant and variable diffusion coefficient and convection rate.

Basic results are presented as follows:1) the reclaimed section or the "heat island" has noon intencity of 4-6℃, the surface disturbance can be felt at 700 m AGL and convective perturbance at the PBL top, with the convective speed of 1-2 cm/s;

The measured signals were multi-scale decomposed by wavelet analysis and the scale-dependent convection velocities are computed with correlation method,then the scale-dependent convection velocities are used to reconstruct the wavefronts.

The feedback mechanism and the hydrodynamic instability theorem are proposed to predict correctly the frequency jump position, wave number and the convection speed of the self-sustained oscillating flow for different jet exit velocities.

The convection speed abruptly falls to zero at critical Richardson number.

Here Uc is the convection speed of the unstable shear layers between two tandem cylinders.

The convection speed was low (100/150 m/s) when Bz was northward but increased to 500 m/s after Bz turned southward on January 20.

For the first half of its lifetime in the radar field of view the phase speed of the PIF is highly variable and the mean speed is nearly twice the ionospheric convection speed.

It is noted that the rate of ascent of the thermal inhomogeneity is much higher than the free convection velocity.

The most likely origin of this modulation is modulation of the current flowing along a closed coronal magnetic loop due to the five-minute oscillations of the photospheric-convection velocity.

The model Navier-Stokes equation is derived with nonlinear "viscosity" v ∝ U0/T and convection velocity vf ∝ (1 - U0/T).

Arcs that appeared after the northward turning of the IMF vertical component drifted poleward at a velocity close to the convection velocity.

Free convection velocity profiles are obtained for the asthenosphere beneath a mid-ocean ridge (MOR) with a mobile lithosphere.

The convective velocity components vz' (r, z), vr' (r, z) and the temperature T are determined as functions of the cylindrical coordinates.

In fact, the convection can be correctly represented by the Eulerian mean of the Lagrangian residual velocity, as the convective velocity in the longer-term transport equation is nothing but the mass-transport velocity.

Estimates of the maximum possible conductive heat loss from the core to the mantle and the mean radial component of the convective velocity are presented.

Simulating the Kinematic Dynamo Forced by Heteroclinic Convective Velocity Fields

The convective velocity of the second Mach wave source is higher than the first and thus its Mach angle of radiation is higher.

Physical processes of the propagation of the solar cosmic rays in the interplanetary space include the diffusion in interplanetary disordered magnetic fields and the convection in solar winds. Dimensional method can be applied to solve those equations convertible into Bessel equation, the results obtained are identical with those solved by the commonly used separate variable method. In order to derive an analytic solution to the diffusion convection equation in an unbounded, uniform medium, two dimensionless...

Physical processes of the propagation of the solar cosmic rays in the interplanetary space include the diffusion in interplanetary disordered magnetic fields and the convection in solar winds. Dimensional method can be applied to solve those equations convertible into Bessel equation, the results obtained are identical with those solved by the commonly used separate variable method. In order to derive an analytic solution to the diffusion convection equation in an unbounded, uniform medium, two dimensionless parameters reflecting the diffusion and convection characteristics of the particles are introduced. In the diffusion dominated case, the solution is similar in form to the diffusion of a source moving with the convection velocity and is modified by another convection term, which can be expanded into a power series of the convection parameter with coefficients composed of the generalized hypergeometric function series of the diffusion parameter. This solution has a clear physical meaning, and can suitably be used in the discussion of the rise phase characteristics of the solar cosmic rays from medium to high energies (E_p≥10~1 MeV).

Distributions of temperature and velocities of natural convection in vertical rectangular slot have been obtained by numerical analysis. According to the curves of local and average heat transfer coefficients, the effect of Rayleigh number and aspect ratio was studied. The numerical results indicate that the aspect ratio between 3-20 has a substantial effect on average Nusselt number.Computed values compare favorably with available experimental results.

The data observed by EISCAT are used to study the effect of the magnetosphere-ionosphere coupling on the high latitude ionosphere.A case shows that during magnetic storm,even on long summer days,the influence of the magnet ospheric processes on the morphology of the high latitude ionosphere is quite important in comparison with that of the ionization of the solar extreme ultreviolet radiation.The electron density at E-layer significantly increases due to the precipitation of energetic particles from the magnetosphere,while...

The data observed by EISCAT are used to study the effect of the magnetosphere-ionosphere coupling on the high latitude ionosphere.A case shows that during magnetic storm,even on long summer days,the influence of the magnet ospheric processes on the morphology of the high latitude ionosphere is quite important in comparison with that of the ionization of the solar extreme ultreviolet radiation.The electron density at E-layer significantly increases due to the precipitation of energetic particles from the magnetosphere,while the enhancement of the mag-netospheric convection velocity may accelarate recombination of ionization components with neutral atmosphere and cause the nc decreasing at the F-layer altitude.So,usually,ne(E-layer)> ne(F-layer) during magnetic disturbed period.The morphology is not only entirely changed from the quiet period,but also much different in comparison with that at middle and low latitudes.