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saturated porous media     
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  饱和多孔介质
     Transport of avian infectious bronchitis virus (IBV) and bacteriophage (MS2) in saturated porous media
     冠状病毒IBV和噬菌体MS2在饱和多孔介质中的运移规律
短句来源
     Based on governing equations of saturated porous media and Liapunovs stability, the onset strain localizations of porous media that formularized by solid phase stress and effective stress under seepage flow state are presented here.
     在单相介质和非渗流饱和多孔介质应变局部化萌生条件的基础上,应用饱和多孔介质控制方程和Liapunov稳定理论,导出了渗流条件下的固相应力-应变描述和有效应力-应变描述的多孔介质固相部分的应变局部化的萌生条件。
短句来源
     The thesis is mainly on the research and analysis of the freezing process in the saturated porous media and solute distribution in that process.
     本论文研究了含湿饱和多孔介质内部流体凝固相变过程以及相变过程中流体溶质的传输过程。
短句来源
     Study on Variational Principles for Fluid Saturated Porous Media
     关于饱和多孔介质变分原理的研究
短句来源
     Wave propagation in saturated, porous media is an important subject in geotechnical and earthquake engineering.
     饱和多孔介质中波的传播是岩土地震工程中的重要问题,但由于模型的复杂性,很难利用解析法求解实际问题。
短句来源
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  饱和孔隙介质
     A THREE FIELD FINITE ELEMENT PROCEDURE FOR TWO DIMENSIONAL FLUID SATURATED POROUS MEDIA
     二维饱和孔隙介质的三场有限元方法
短句来源
     In this paper, an attempt is made to discuss the wave propagation behavior in saturated porous media with the decomposition of the motion equations.
     通过对饱和孔隙介质的运动方程的分解,证明了饱和孔隙介质体中存在两种类型的膨胀波(P1波、P2波)和一种剪切波(SV波)传播;
短句来源
     Wave Propagation Behavior in Saturated Porous Media
     饱和孔隙介质中的波
短句来源
     Two conclusions are induced from the BISQ model: there is no squirt mechanism in inviscid fluid saturated porous media and there is no “dynamic compatibility” phenomenon in viscid fluid saturated porous media.
     依据BISQ模型可推断 :非黏滞流体饱和孔隙介质中不存在喷射流机理 ; BISQ模型中不会发生“动力协调”现象
短句来源
     After effective fluid model and Darcy′s law in partially saturated porous media are introduced to Biot-Geertsma-Gassmann(BGG) equation,the elastic wave propagating from a saturated porous medium to a Biot-type porous medium saturated by a liquid-gas mixture is investigated.
     通过将等效流体模型和非饱和土Darcy定理引入Biot-Geertsma-Gassmann方程,研究弹性波由饱和孔隙介质向非饱和孔隙介质传播时,饱和度变化对弹性波反射系数、透射系数,以及弹性波携带的能量分配的影响。
短句来源
  流体饱和多孔介质
     NUMERICAL SIMULATION OF ELASTIC WAVES IN FLUID ──SATURATED POROUS MEDIA
     流体饱和多孔介质中弹性波的数值模拟
短句来源
     GENETIC ALGORITHM FOR PARAMETER INVERSION OF SATURATED POROUS MEDIA
     流体饱和多孔介质参数反演的遗传算法
短句来源
     A VISCOUS-SPRING DYNAMICAL ARTIFICIAL BOUNDARY FOR SATURATED POROUS MEDIA
     流体饱和多孔介质黏弹性动力人工边界
短句来源
     This paper presents the numerical investigation of Biot theory on acoustic wave propagation in fluid saturated porous media.
     本文用数值计算方法研究了流体饱和多孔介质中声传播的Biot理论。
短句来源
  液饱和多孔介质
     Finite Element Analysis on the Elastic and Plastic Dynamic Behaviors of Saturated Porous Media
     液饱和多孔介质动力响应的弹塑性有限元分析
短句来源
     The finite element numerical analysis is one of the important methods in the dynamic response investigation of biphasic saturated porous media model.
     而在液饱和多孔介质动力响应问题上,有限元数值分析方法已日益成为其研究的重要手段。
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  saturated porous media
On the basis of the integral formula mentioned above, the time-domain explicit finite element method is developed for calculation and analysis of the elasto-plastic dynamic response of fluid-saturated porous media.
      
The approach proposed by Podil'chuk [1] is used to derive a system of equations of motion for saturated porous media, allowance being made for the mutual influence of the solid, liquid, and gas phases.
      
Some one-dimensional nonlinear effects associated with wave propagation in weakly permeable fluid-saturated porous media are investigated.
      
On the propagation of pressure waves in saturated porous media
      
Osmotic Mechanism of Fracture Growth in Saturated Porous Media
      
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The natural convective heat transfer in fluid saturated porous media within a rectangular enclosure heated from below and cooled at the top,both isothermally,while the rest walls are adiabatic,is investigated for the 2-dimensional case,numerically.Rayleigh numbers range from 30 to 300. The indication of the onset of convective flow with the first critical Rayleigh number Ra_c at 40 is verified by the present analysis.The variations in flow field,temperature distribution and heat transfer with the increase...

The natural convective heat transfer in fluid saturated porous media within a rectangular enclosure heated from below and cooled at the top,both isothermally,while the rest walls are adiabatic,is investigated for the 2-dimensional case,numerically.Rayleigh numbers range from 30 to 300. The indication of the onset of convective flow with the first critical Rayleigh number Ra_c at 40 is verified by the present analysis.The variations in flow field,temperature distribution and heat transfer with the increase of Rayleigh number are shown.Correlations of Nusselt number Nu with Rayleigh number Ra at various aspect ratios are given in order to facilitate the heat transfer calculations.

对底面恒温加热顶面恒温冷却、其它壁面绝热的矩形闭合空间内多孔介质中的自然对流传热问题,简化为二维模型进行数值计算和分析,在Ra≤300范围内,揭示了流场、温度场和换热效果随瑞利数(Ra)变化的特性,证实了从导热向自然对流开始过渡的第一临界瑞利数 Ra_c=40,给出了努谢尔特数(Nu)、瑞利数(Ra)和形状比(A)之间关系的理论计算公式和曲线。

Some pheuomena which can not be interpreted with tradirional hydrodynamic theory were found through careful observation of groundwater regimc. Starting from the elasticity and permeability of water-saturated porous media, the properties of storage and flow of groundwater in elastically deformed confined aquifers were discussed. The gen(?) differential equation and the expression of (?) coefficient (S_s)of groundwater flow through three-(?)sional-elastically deformed confined aquifer were derived. It is...

Some pheuomena which can not be interpreted with tradirional hydrodynamic theory were found through careful observation of groundwater regimc. Starting from the elasticity and permeability of water-saturated porous media, the properties of storage and flow of groundwater in elastically deformed confined aquifers were discussed. The gen(?) differential equation and the expression of (?) coefficient (S_s)of groundwater flow through three-(?)sional-elastically deformed confined aquifer were derived. It is pointed out that: (1)S_s is a constant which is not affected by the flowing of groundwater; (2) the effect of stress or strain on the pore pressure or water level in wells is a wide-spread phenomeuon, The causes of groundwater microbehavior are explained theorelicaly.

在细微的地下水动态观测中,发现了一些传统水文地质学理论难以解释的现象。本文从含水介质的弹性和渗透性入手,讨论了承压含水层在弹性变形条件下,地下水的贮存和流动特征,导出了三维弹性变形承压含水层中地下水运动的一般微分方程及贮水率(S_S)的一般表述式。指出贮水率(S_S)是一个不受地下水流动影响的常数,含水层的受力或变形对孔隙压力或井孔水位的影响是一种普遍现象。从理论上解释了各种地下水位微动态的成因机理。

This article utilizes the theory of mixtures to formulate a general theory of wave propagation with mass-coupling effect in fluid-saturated porous media. An attempt is made to discuss the physical interpretation and the thermodynamic restriction of the coefficients appearing in the equations obtained. By the comparison it is shown that Biot's classical theory and the present one are essentially consistent. Also, wave velocities in some special cases are calculated, from which it is concluded that mass-coupling...

This article utilizes the theory of mixtures to formulate a general theory of wave propagation with mass-coupling effect in fluid-saturated porous media. An attempt is made to discuss the physical interpretation and the thermodynamic restriction of the coefficients appearing in the equations obtained. By the comparison it is shown that Biot's classical theory and the present one are essentially consistent. Also, wave velocities in some special cases are calculated, from which it is concluded that mass-coupling and permeability of media greatly affect wave propagation behavior.

本文按照混合物理论严格地推导出了饱和孔隙介质的一般波传播理论.该理论的重要性在于包含了质量耦合作用,并为研究该问题提供了理性基础和实用方程.本文对所得方程中的系数的物理意义和热力学限制进行了讨论.通过比较认为本文的理论和Biot古典理论基本上一致.本文还对完全透水、完全不透水和具有刚性固体骨架的介质的无边界条件下的波传播问题进行了研究,得到了一些有意义的结论.

 
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