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capillary porous media
相关语句
  毛细多孔介质
     Study and Application of Model for Heat and Mass Transfer in Capillary Porous Media during Drying
     毛细多孔介质干燥过程中传热传质模型研究及应用
短句来源
     Presents the study on the cross effect of heat and mass transfer of capillary porous media A.
     针对雷柯夫建立在不可逆过程热力学原理上的传热与传质方程组 ,着重研究毛细多孔介质内传热与传质过程中的交叉效应 .
短句来源
     A THREE-EQUATION MODEL FOR HEAT AND MASS TRANSFER WITH PHASE CHANGE IN WET REGION OF CAPILLARY POROUS MEDIA DURING DRYING
     含湿毛细多孔介质湿区相变传热传质干燥三方程模型
短句来源
     ANALYSIS ON HEAT AND MASS TRANSFER WITH PHASE CHANGE IN WET CAPILLARY POROUS MEDIA DURING DRYING
     含湿毛细多孔介质干燥过程相变传热传质分析
短句来源
     With a liquid-phase residual saturation degree Sir being assigned a definition a wet capillary porous media drying-zone is divided into a wet zone and a dry one.
     对液相残余饱和度Sir作了一个定义 ,把含湿毛细多孔介质干燥区域分为湿区和干区。
短句来源
更多       
  “capillary porous media”译为未确定词的双语例句
     THE MINIMUM GRADIENTS THEORY FOR UNSATURATED FLOW IN CAPILLARY POROUS MEDIA
     多孔介质非饱和渗流的阈梯度理论
短句来源
     THE COUPLE HEAT AND MASS TRANSFER DURING THE DRYING OF A CAPILLARY POROUS MEDIA
     多孔物料干燥时的耦合传热传质效应
短句来源
     In order to study the phase change phenomena of wet capillary porous media during drying, a model of heat and mass transfer with phase change was established.
     为研究含湿毛细孔介质干燥过程的相变现象,建立了相变的传热传质数学模型.
短句来源
  相似匹配句对
     The Capillary Effect of Viscous Fingering in Porous Media
     多孔介质粘滞指进中的毛细效应
短句来源
     Capillary hysteresis is one of the important behaviors in unsaturated porous media.
     毛细滞后是未饱和多孔介质中很重要的特性之一。
短句来源
     DETERMINATION OF CAPILLARY PRESSURE,SATURATION AND RELATIVE PERMEABILITY IN POROUS MEDIA
     多孔介质中毛细压力、饱和度和相对渗透率的确定方法
短句来源
     THE MINIMUM GRADIENTS THEORY FOR UNSATURATED FLOW IN CAPILLARY POROUS MEDIA
     多孔介质非饱和渗流的阈梯度理论
短句来源
     Brine Transprot in Porous Media
     高浓卤水在多孔介质中的运移
短句来源
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  capillary porous media
The behavior of temperature profiles is examined in filtrating capillary porous media which are subjected to periodic heating.
      
Features of periodic temperature profiles in filtrating capillary porous media
      
A non-equilibrium thermodynamics approach to transport phenomena in capillary porous media.
      


Capillary hysteresis is one of the important behaviors in unsaturated porous media.In many cases, the hystersis affects evidently the heat and mass transfer processes in the media. This paper adopts the minimum gradients assumption to describe quantitatively the hysteretic behavior of capillary liquid flowing, and builds up the theoretical basis of heat and mass transfer in unsaturated capillary porous media. Although the media, that the theory is available for, are restricted, the basic theoretical...

Capillary hysteresis is one of the important behaviors in unsaturated porous media.In many cases, the hystersis affects evidently the heat and mass transfer processes in the media. This paper adopts the minimum gradients assumption to describe quantitatively the hysteretic behavior of capillary liquid flowing, and builds up the theoretical basis of heat and mass transfer in unsaturated capillary porous media. Although the media, that the theory is available for, are restricted, the basic theoretical method presented here can be applied to more complicated situations, such as the cases in which the solid matrix changes its volume and shape with the temperature and moisture varied, and the total pressure is not uniform inside the media.

毛细滞后是未饱和多孔介质中很重要的特性之一。在许多情况下,毛细滞后现象对介质中传热和传质过程有着显著的影响。本文引入最小梯度概念,用以描述多孔体中毛细水运动滞后的定量行为,进而建立了考虑毛细滞后效应的未饱和含温多孔介质传热和传质的系统理论,为进一步定量研究毛细滞后对传热传质的影响打下了理论基础。

Based on the Mechanism of heat and mass transfer and by using the minimum gradient theo-ry for unsaturated flow in capillary porous media, a general theory for heat and mass transfer in unsat-urated porous media cunsidering the effect of capillary hysteresis is established.In addition,the heatand mass transport properties in the equations are analysed,which provides a basis for developingeffective experimental method to determine the properties.

本文从热湿迁移机理出发,通过在液相渗流中引入毛细滞后的影响,采用液相运动的最小梯度假设,建立了未饱和含湿多孔介质在考虑毛细滞后效应时传热传质的较普遍的模型理论.并对方程中的热湿迁移特性系数进行了分析,为进一步发展确定热湿迁移特性的有效实验方法提供了依据。

Porosity and permeability of the particle packed bed are both important properties for soil science, petroleum physical principle, civil and environment engineering, chemical industry and materials engineering. The relationship between permeability k and porosity φ of the particle packed bed was measured by passing little flow with little pressure drop. The repeated experimental results show that, for a given unconsolidated porous medium, the permeability porosity relationship is unique. The relationship...

Porosity and permeability of the particle packed bed are both important properties for soil science, petroleum physical principle, civil and environment engineering, chemical industry and materials engineering. The relationship between permeability k and porosity φ of the particle packed bed was measured by passing little flow with little pressure drop. The repeated experimental results show that, for a given unconsolidated porous medium, the permeability porosity relationship is unique. The relationship between the flow rate and pressure drop in the capillary porous media following linearity recovered by Darcy's law is consistent with that of the layer flow in ordinary pipes and channels. However, the conventional hydrodynamic theory and dimensional analysis are not sufficiently applied to the penetrate flow in the porous media. The permeability can not be expressed by a linear function of the square of the particle size. For the screened sand whose particle size rangesd from 100μm to 450μm and size ratio is 1∶1.25, the permeability can be estimated from the formula: k/ μm 2=1.72×10 4 ( d /mm) 1.465 φ 4.69 .

孔隙率和渗透率是土壤科学,能源动力工程,化学工程,土木工程以及环境工程研究中的基本物性参数。采用小流量和低压差实验研究了非固结颗粒床的渗透率和孔隙率关系。研究表明,给定颗粒介质的渗透率k与孔隙率的关系是唯一确定的;流量和压差成正比的达西渗流定律和通常的层流流动规律表现出一致性,但发生在毛细多孔介质内的渗流流动并不同于常规的槽道流动。渗透率不是颗粒或流道几何尺度平方的函数。对粒度d为100~450μm,粒径比为1.25∶1的窄筛分砂土的渗透率建议采用如下带单位的公式计算:k/μm2=1.72×104(d/mm)1.4654.69。

 
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