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convection transport
相关语句
  对流输移
     Solution and application of convection transport problem for river network
     河网对流输移问题的求解及应用
短句来源
  “convection transport”译为未确定词的双语例句
     Comparison and analysis research on numerical method for pure convection transport
     对流方程数值解法比较及分析研究
短句来源
     In chapter two, the visualization of convection transport provides a simple but effective way to evaluate the indoor air environment.
     作者以二维层流双扩散混合对流模型——置换通风——进行了数值模拟与分析,并利用上述对流可视化技术来观察热源、污染源、外部机械通风三个因素对室内空气环境的影响。
短句来源
     The new therapy included inhibition of apoptosis, carrier therapy, convection transport, different biotin bioconversion etc.
     新疗法有抑制细胞凋亡、载体疗法、对流转运、异生物素生物转化等。
短句来源
  相似匹配句对
     O.C.P Transport
     什么是O.C.P运输?
短句来源
     The particle transport consists of outward diffusion and inward convection.
     粒子输运由向外扩散和向内对流构成。
短句来源
     The transport mechanisms of the contaminants are convection, dispersion, diffusion and adsorption.
     污染物在粘土中的迁移机理主要包括对流、机械弥散、分子扩散和吸附等。
短句来源
     transport route;
     转运途径;
短句来源
     ON THE OVERSTABILITY CONVECTION
     论振荡型对流
短句来源
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  convection transport
For bubble dissolution in glassmelts with equilibrium redox reactions due to refining agents, the applicability of the convection transport approximations employed in the literature was discussed.
      
We present the model of convection transport in which the first condition in the generation of thunder electricity is an atmosphere with a horizontal gradient of temperature.
      


The general equation of transfer function model (TFM) developed by Jury et al is simplified in this paper and a simplified equation of TFM is introduced suitable for studying the salt movements under infiltration. The travel time probability distribution function P(t) and its density function g(t-t'), describing salt movements through soil layers of 0-60cm, are obtained from the simplified equation for irrigation water with different salinities in the field. Some parameters such as average travel time t of salt,...

The general equation of transfer function model (TFM) developed by Jury et al is simplified in this paper and a simplified equation of TFM is introduced suitable for studying the salt movements under infiltration. The travel time probability distribution function P(t) and its density function g(t-t'), describing salt movements through soil layers of 0-60cm, are obtained from the simplified equation for irrigation water with different salinities in the field. Some parameters such as average travel time t of salt, average velocity v in pores, average water content of movable water θm, describing the charateristics of unsaturated water movement and convection transport of salt in soil layers are obtained. Some theoretical shortcomings in this research are also pointed out.

本文首先对Jury等的TFM一般方程进行了简化,导出了适于研究在入渗条件下描述盐分对流运移的TFM简化方程;根据田间高低不同矿化度水灌溉入渗试验结果和上述简化方程,得到了盐分通过0—60cm土层的时间概率分布函数P(t)及其相应的密度函数g(t—t’),同时还推求出有关描述土壤水非饱和流动和盐分对流运移特征的参数:如盐分通过所研究土层的平均时间t、水分在土壤孔隙中的平均流速V、土体中可动水体的平均含水率θ_m等,并对这些参数进行分析和讨论;最后指出了本文在理论方面的不足之处和尚待进一步探讨的问题.

In consideration of the characteristics of the unsteady flow with variable directions and unsteady nonuniform convection transport in plain river network,a series of recursion equations and the numerical method have been derived to solve the implicit difference equations ofconvection transport problem for river network.The method not only reflects the characteristics mentioned but also has the advantages of small memory space required by computer, the fast calculating speed and convenient application.The...

In consideration of the characteristics of the unsteady flow with variable directions and unsteady nonuniform convection transport in plain river network,a series of recursion equations and the numerical method have been derived to solve the implicit difference equations ofconvection transport problem for river network.The method not only reflects the characteristics mentioned but also has the advantages of small memory space required by computer, the fast calculating speed and convenient application.The method has been applied to the regional program controlling water pollution of river network for Wuxi city and Pudong of Shanghai city.

本文针对平原河网地区,河道纵横交错、水流流向顺逆不定、水流中输送的物质浓度属非稳态非均匀变化等特点,推导得到了适用于各种流动情况下,求解河网对流输移问题隐式差分方程的一套计算公式,及相应的河网计算方法.运用这一方法进行数值求解,不仅能反映上述各种特点,还具有所需的计算机内存少,计算速度快,易于掌握及应用方便等优点.

Several kinds of schemes of numerical method for pure convection transport are concluded, such as upwind scheme, 4-points eccentric preissmann scheme with time and space,Yang-Cunge scheme. Their characteristics are compared and analyzed with their accuracy, stability and convergence. They are applied to two typical calculation examples and their effectiveness are also compared and analyzed with the computed results. Finally ,we hope that the article can help to choose and apply accurate numerical method...

Several kinds of schemes of numerical method for pure convection transport are concluded, such as upwind scheme, 4-points eccentric preissmann scheme with time and space,Yang-Cunge scheme. Their characteristics are compared and analyzed with their accuracy, stability and convergence. They are applied to two typical calculation examples and their effectiveness are also compared and analyzed with the computed results. Finally ,we hope that the article can help to choose and apply accurate numerical method to solve actual problems.

归纳总结了求解对流方程的几种常用数值解法的格式 ,如迎风格式、四点时空偏心Preissmann格式、杨 贡日格式等 ,并从相容性、稳定性、收敛特性分析出发 ,对各种数值解法的特点进行了比较与分析 ,同时将各种解法应用到两种典型算例的验算中进行比较与分析 ,期望对于实际工作中在面临如何正确合理的选择一种合适的求解对流方程的数值解法的问题时能有一定的参考作用。

 
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