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对流
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  convection
    PHENOMENON OF WAVE-LENGTH INCREASE IN RAYLEIGH-BENARD CONVECTION AND CRITERION OF MAXIMUM ENTROPY PRODUCTION
    Rayleigh-Bénard对流中的波长增长现象与最大熵产生判据
短句来源
    NUMERICAL SIMULATION OF BLOOD CONVECTION HEAT TRANSFER
    血液对流换热的数值模拟
短句来源
    GE METHODS FOR THE CONVECTION EQUATIONS
    对流方程的GE方法
短句来源
    The Description of Maximum c in Five-Order Double-Diffusive Convection System
    五模双扩散对流模型的MAXIMUM c描述
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    LATTICE MODELS FOR SOLVING CONVECTION DIFFUSION EQUATIONS
    对流扩散方程的格点模型
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  “对流”译为未确定词的双语例句
    The Discretization Technology of the Convection-Diffusion Equation and the Numerical Experiments
    对流扩散方程的离散技术及数值实验
短句来源
    A h2m- Exponential Finite Difference Scheme For the steady Inhomogoneous Convection-Diffusion Equation
    稳态含源对流扩散方程2m所指数型格式的差分方法
短句来源
    LATTICE MODEL FOR CONVECTION-DIFFUSION EQUATION IN ONE DIMENSION ESTABLISHED BY THE METHOD OF MULTI-SCALE
    用多尺度技术建一维对流扩散方程的格点模型
短句来源
    The result shows that fracture due to thermal stress may occur when effective pump energy is up to 10kW/cm2 and the increase of heat transfer coefficient can reduce the temperature but may increase the maxim thermal stress.
    研究结果表明:有效泵浦功率密度达到10kW/cm2量级时,介质可能发生热致断裂; 增大强迫对流换热系数会减少温升,但端面处温度梯度增大,热应力可能增大。
短句来源
    NONLINEAR GALERKIN MIXED ELEMENT METHODS FOR THE NON STATIONARY CONDUCTION-CONVECTION PROBLEMS (Ⅰ): THE CONTINUOUS-TIME CASE
    非定常的热传导-对流问题的非线性Galerkin混合元法(Ⅰ):时间连续情形
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  convection
Mixed finite element method for the convection-dominated diffusion problems with small parameterε
      
for Sobolev equations with convection-dominated term
      
for linear Sobolev equations with convection-dominated term is given.
      
Thermally developing forced convection and the corresponding thermal stresses in a porous plate channel
      
We obtained the pattern of mantle convection for East Asia and the West Pacific.
      
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  convective flow
The results of numerical simulations are presented that confirm the conclusion about a possibility of generation of an averaged convective flow of a vibrational type by the high-frequency component of microaccelerations.
      
It is shown that, when a certain critical mass flow rate of the gas or the suspension is attained, due to the essential inhomogeneity of the velocity of the gas bubbles, the layer becomes unstable and convective flow develops in a Bénard cell.
      
The method is applied to the measurement of a temperature field in a turbulent convective flow.
      
A linear theory of stability of a plane-parallel convective flow between infinite isothermal planes heated to different temperature was developed in [1-6].
      
The analog of the Squire transformation obtained in [4] for infinitely small disturbances of a plane-parallel convective flow is extended to secondary motions of finite amplitude.
      
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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).

太阳宇宙线在行星际空间的传播,包括行星际不规则磁场中的扩散和太阳风对流这两种物理过程.应用量纲分析法可以解出现有许多能化为贝塞尔函数的方程,得到与常用分离变量法完全相同的结果.为了求出均匀无限介质中扩散对流方程的解,我们引入反映粒子扩散和对流特征的无量纲参数.在扩散为主导的情况下,解在形式上类似于以对流速度运动的源的扩散,另一对流修正项可按对流参数的幂级数展开,其系数是扩散参数的广义超几何函数组成的级数.这种解的物理概念清楚,适用于讨论中等能量(E_p≥10~1Mev)以上太阳宇宙线上升期特性.

Computer calculations have been made on the dimensional solution to the anisotropic diffusion convection equation for solar cosmic rays propagating in an uniform and unbounded interplanetary medium. This paper presents the results calculated by means of Jokipii's diffusion coefficients. Discussion is restricted to the influences of solar wind convection on the rise to maximum times and on the peak intensities of solar cosmic ray events with solar corotation effect taken into consideration. The model well explains...

Computer calculations have been made on the dimensional solution to the anisotropic diffusion convection equation for solar cosmic rays propagating in an uniform and unbounded interplanetary medium. This paper presents the results calculated by means of Jokipii's diffusion coefficients. Discussion is restricted to the influences of solar wind convection on the rise to maximum times and on the peak intensities of solar cosmic ray events with solar corotation effect taken into consideration. The model well explains the asymmetrical variations of the propagation charateristics of the events with solar longitudes of their parents flares relative to the interplanetary magnetic field lines passing through the earth, and the theoretical curves of the rise times fit satisfactorily the observations of solar events ranging from relativistic to about 30 MeV medium energies.

应用电子计算机计算了太阳宇宙线在均匀并无限的行星际介质中传播的各向异性扩散对流方程的量纲分析解.本文介绍利用Jokipii扩散系数计算的结果,只讨论太阳风对流对太阳宇宙线事件上升至极大时间及峰强度的影响,并且考虑了太阳共旋效应.模型很好地说明事件传播特性随其源耀斑相对于过地球的行星际磁力线的太阳经度的变化,上升时间的理论曲线很符合于自相对论能量至大约30 Mev的中能事件的观测结果.

The various techniques for sapphire growth are summarily reviewed in this paper.It isemphasized that the melt convection in crucible has serious effect on quality of Czochralskicrystals, moreover, the STGT of monocrystals sapphire are proposed. The results show that the qualities of STGT crystals such as dislocation density, opti-cal uniformity, stress and scattering centers etc are better than those of the crystals grownby Verneuil and Czochralski techniques.The advantage and disadvantage of STGT for thegrowth...

The various techniques for sapphire growth are summarily reviewed in this paper.It isemphasized that the melt convection in crucible has serious effect on quality of Czochralskicrystals, moreover, the STGT of monocrystals sapphire are proposed. The results show that the qualities of STGT crystals such as dislocation density, opti-cal uniformity, stress and scattering centers etc are better than those of the crystals grownby Verneuil and Czochralski techniques.The advantage and disadvantage of STGT for thegrowth of the laree sapphire crystals with high qualities are also discussed.

评述了各种生长兰宝石晶体的工艺技术,着重指出采用Czochralski技术生长兰宝石晶体过程中存在的坩埚中熔体对流效应对晶体质量的严重影响,提出了生长兰宝石晶体的导向温梯法。 采用导向温梯法生长兰宝石晶体所得结果表明,其位错密度、光学均匀性、应力和散射中心等品质均优于Verneuil和Czochralski技术生长的晶体。还讨论了选用该法生长大尺寸、高质量兰宝石单晶的优缺点。

 
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