采用振动格栅产生的各向同性均匀湍流研究了泥沙的起动。
The sediment incipience in homogenous turbulence generated by oscillating grids is studied in this paper.
该解退化到各向同性均匀弹性情况时与已有的理论解相一致。
Degenerate results for the special case of an isotropic homogeneous elastic beam are coincided well with the existing analytical solutions.
液滴在各向同性均匀湍流场中散布的预测结果与实验十分符合。
The prediction of the droplet dispersion in isotropic turbulence is in reasonable good agreement with the experimental results.
例如,该理论预测了均匀且各向同性时空的最大密度,而这可能隐含了黑洞形成过程的某些信息。
For instance, the theory predicts a maximum density of homogeneous and isotropic space-time, which could have implications for black hole formation.
认为在宇宙尺度上,任何时刻,三维空间是均匀的和各向同性的。
That the scales in the universe, at any time, three-dimensional space is homogeneous and isotropic.
考虑一均匀各向同性薄板结构,在其上下表面离散分布着压电执行元件。
An uniform distribution, isotropic thin plate, on which both surface there are discrete distribution piezoelectric actuators, is considered.
对在一个各向同性、均匀的弹性球的具有恒定的热传导系数的球面上进行加热这一理想情况下,计算了陨星由于空气动力学加热而产生的热应力。
Thermal stress in meteoroids by aerodynamic heating is calculated for the ideal case of an isotropic, homogeneous, elastic sphere being heated at the surface with a constant heat transfer coefficient.
对于均匀线性和各向同性的介质,通过计算两种特殊位形的磁场分布,得到其介质界面连续分布的磁化电流可用分立的镜象电流来代替。
Two kinds of magnetic field distribution are discussed and the result show magnetizing current on interface can be replaced with discrete mirror image current for uniform, linear and isotropic medium.
考虑一均匀各向同性薄板结构,在板面内受面力作用,且在板的上下表面离散分布着压电执行元件。
A homogeneous isotropic thin plate, on which the surface force ACTS and there are many actuators of discrete distribution, is considered.
把葡萄简化成球形的、均匀的、各向同性的和内部充满不可压缩液体的弹性膜。
The grape was assumed as a spherical homogeneous, isotropic elastic membrane, which was fully-filled with incompressible, high viscous liquid.
本文采用直接数值模拟的方法,研究了颗粒惯性对均匀各向同性湍流场中被动标量混合特性的影响。
The influence of partial inertia on scalar mixing in homogeneous isotropic turbulent flows was studied using a direct numerical simulation (DNS) method.
对均匀各向同性湍流提出一个能谱密度的计算公式。
Formulae of energy spectrum density of large wavenumber range in homogeneous isotropic turbulence are given here.
用这种方法详细推导了均匀各向同性介质波导中的并矢格林函数。
With this method, we studied the dyadic Green functions of waveguides in isotropic media in detail.
讨论均匀磁场中三维各向同性带电谐振子的双波函数描述,得到量子和经典极限条件下的结果。
Double wave function quantum theory is applied to describe the motion of three dimension isotropy charged harmonic oscillator in a uniform magnetic field.
当激光入射到非均匀的各向同性等离子体时,垂直于主密度梯度方向的密度分布会发生变化,使临界面呈现波纹。
When laser beam is incident on an inhomogeneous isotropic plasma, the variations in density profile perpendicular to main density gradient may develop, producing a rippling of critical surface.
对由横观各向同性压电介质构成的悬臂梁在均匀分布荷载作用下的弯曲问题进行了研究。
The bending problem of a cantilever beam made of transversely isotropic piezoelectricity medium under uniformly distributed loading is studied.
各向同性损伤理论是建立在材料是均匀的、各向同性的以及损伤也是各向同性的假设基础之上。
The theory of isotropy damage is based on the hypothesis that the material and damage are symmetrical and isotropic.
对各向同性不可压缩软弹性薄膜,预先在面内两个垂直方向上分别均匀变形。
Consider the surface buckling of an isotropic incompressible soft film, which is deformed uniformly in two perpendicular directions respectively.
管束列管式静态混合器利用管道边壁的边界层作用,强化形成准均匀各向同性涡旋,实现快速混合。
For the static tubular mixer with tube-arrays, semi-uniform and isotropy turbulent flow takes place using the effect of boundary layer in the arrayed tube, which can achieve rapid mixing.
证明了非均匀各向同性线性介质中的唯一性定理。
The uniqueness theorem in the linear isotropic nonuniform medium is proved.
利用对应原理和FFT技术计算出了无限均匀各向同性介质中双力偶点源产生的位移场,并结合若干实例进行了分析和总结。
According to the correspondence principle and FFT, the author have calculated the displacement field of a double-couple point source in homogeneous, isotropic, unbounded medium.
点力源在均匀横向各向同性介质中激发的弹性波可以用透射-反射矩阵法进行求解。
Elastic waves from a point force in transversely isotropic, homogeneous media can be solved through the reflectivity-transmittivity matrix approach.
研究了由一类均匀各向同性的可压缩超弹性材料组成的球体在给定的表面拉伸作用下的球对称变形问题。
A spherical symmetric deformation problem was examined for a solid sphere subjected to a prescribed uniform radial stretch on its surface.
均匀的蚀刻允许通过简单的各向同性蚀刻来减小电活性构件的临界尺寸的有效方法。
Uniform etching allows for an efficient method of reducing a critical dimension of an electrically active structure by simple isotropic etch.
在屏蔽腔内安装转动的搅拌桨使得混响室内部电磁场在统计上分布均匀且各向同性。
The statistical uniform and isotropic field is yielded by rotating a stirrer in the shielding room.
建立了电介质极化过程的物理模型,并讨论了均匀电场与各向同性电介质极化的相互作用。
A physical model describing the process of polarization of electric medium is built up, and the interactions between symmetrical electric field and the polarized electric medium are discussed.
微波背景辐射显示的宇宙高度的均匀性和各向同性说明,宇宙已经存在了约150亿年左右。
The high homogeneity and isotropy shown in the cosmic microwave background (CMB) prove that the universe has been in existence for around 15 billion years.
在非均匀水平地应力条件下,无论地层为各向同性或各向异性,套管应力均呈现非均匀分布态势,其套管应力极值变化不大。
When the horizontal in-situ stress is non-uniform, the casing stress is non-uniform at all times not only in the isotropic formation but also the orthotropic ones.
考察了沿厚度方向材料参数为非均匀的功能梯度横观各向同性矩形板的自由振动。
The free vibration of a transversely isotropic and functionally graded rectangular plate with material constanting inhomogeneous across thickness is investigated in the paper.
推导出了三维各向同性谐振子在均匀磁场中的能级表达式并讨论了其最低能级及其简并度的变化。
The formula of energy levels of two dimensional harmonic oscillator in the uniform magnetic field is derived.
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