| 1. | Fractal model for predicting effective thermal conductivity perpendicular to fibres of wood 木材横纹有效导热系数的分形模型 |
| 2. | Effective thermal conductivity of a new material of graphite foam based on fractal theory 基于分形理论的石墨泡沫新材料导热系数 |
| 3. | The fractal model of the effective thermal conductivity in granular flow with non - uniform particles 混合颗粒流分形模型及相关有效热传导的分析 |
| 4. | Analysis of heat transfer and effective thermal conductivity of high temperature fibrous insulation for thermal protection system 热防护系统高温纤维隔热毡传热及有效热导率分析 |
| 5. | Mathematical modeling and application of radial effective thermal conductivity for coil heat transfer in hph bell - type annealing furnace 罩式退火炉炉内钢卷径向非连续介质导热的模拟研究 |
| 6. | Examining results corresponding to different particulate geometry , it shows that the effective thermal conductivity not only depends upon the volume fractions and the properties of components , but also depends on the particulate geometry 对含有其它形状夹杂的复合材料的计算结果表明,复合材料的有效热导率不仅仅依赖于夹杂相的体积含量及组分性质,还与颗粒的几何形状有关。 |
| 7. | The average thermal intensity inside the particle is obtained based on the solution of the temperature field inside the particle . the effective thermal conductivities for composites with different particulate geometry are calculated by using the prediction formula 在求解颗粒复合材料不同形状夹杂内温度场的基础上,进而求解其夹杂相的平均温度梯度,利用有效热导率的预测公式,对含不同形状夹杂的复合材料进行数值计算从而得到其有效热导率。 |
| 8. | In this research , the basal thermodynamic characteristics of " v - type " folded structure were discussed . at first by using numerical calculation in ansys , the paper analyses the influence of six basal configuration parameters of the structure on effective thermal conductivities of 54 kinds of sandwich panel with and its rule of change . and reasons are analyzed theoretically . then , by isight , experiment designs are redesigned of 40 kinds of different " v - type " folded core 本文对v型褶皱芯材夹层板的基本热力学性能进行了基础性研究,首先,运用有限元软件ansys ,对54种不同构型的v型褶皱芯材夹层板进行了计算,得出了6个基本特征参数对其当量导热系数的影响及当量导热系数的变化规律,并从理论上分析了原因。 |
| 9. | In the wrscs , the self - consistent model is used to describe the complex configurations of the particulate composite and the temperature field is solved by weighted residual collocation method with some proper simplifications . this method provides a more efficient way of setting up the algebraic equations corresponding to the governing differential equations . the prediction formula for the effective thermal conductivity of the composite is obtained 权残自洽方法可以用于描述不同形状夹杂的复合材料的微观结构,通过对不同几何形状角点做适当的圆弧化处理,采用加权残值数值计算方法的配点法将求解微分控制方程变为求解线性方程组,进而得到任意形状夹杂内部的温度场,建立含不规则形状夹杂的复合材料有效热导率的预测公式。 |
| 10. | Fractal porous media can be simplified as a kind of binary mixture with different thermal conductivities . the calculated results show that heat transfer in fractal porous media is very complicated , the thermal coupling effect of matrix with pore structure is studied . when heat transfer in pore structure is neglected , the effective thermal conductivity for random sierpinski carpet is scaled up with the percent of matrix , which is described by the classic archie ' s law 本文首先采用有限容积法分析了分形多孔介质中的热传导过程,多孔介质可以视为二元混合介质,计算中发现分形结构中的导热规律非常复杂,基质与孔隙之间存在着很强的相互换热,当不考虑孔隙气体中的导热时,本文所构造的随机sierpinski地毯上导热系数与基质率(基质百分含量)大多呈指数关系,这与archie定律的结果是-致的。 |