界面浓度

  • 网络interfacial area concentration;interfacial concentration
界面浓度界面浓度
  1. 结果表明,界面浓度沿径向的分布与气泡频率沿径向的分布类似,都是靠管上壁较大、靠管下壁较小。气液并流吸收近界面浓度分布不稳定性实时观测

    The result indicated that the interfacial area concentration profiles very closely followed the bubble passing frequency distributions . Real-time measurement of unstable concentration distribution near interface for gas-liquid cocurrent absorption

  2. 泡状流局部界面浓度实验与理论研究

    Experimental and theoretical study on local interfacial area concentration in bubbly flow

  3. 通过测定熔融涂层合金对几种基体钢材的冷凝接触角,总结出冷凝接触角与Fe元素的界面浓度差之间存在有一定的五次方程关系;

    A quintic equation between the condensation contact angles and the boundary face concentration difference in Fe element has been proposed by measuring the condensation contact angles of melted coating alloys on base steels and analyzing the elements diffused between them .

  4. 界面浓度是与Yo和液相主体浓度密切相关的。

    The computational results show that the interfacial concentration of absorbed component on liquid side is strongly affected by a Biot number Yo and is also bulk concentration dependent .

  5. 当M<03时,吸氧过程为慢速反应,吸氧速率与De无关,膜内氧气浓度均匀,且等于气固界面浓度。

    But when M < 0.3 , the process was a slow reaction , the diffusion coefficient D _e showed no effect on oxygen-absorbing rate , and the oxygen concentration in the film was uniform and equal to that at gas-solid interface .

  6. 为验证本文模型,作者采用显微激光全息干涉技术对甲醇、乙醇、正丙醇静止吸收CO2时的界面浓度进行了测定,实验结果表明了本文模型的正确性。

    The CO_2 interfacial concentration on the liquid side in stationary absorption by pure methanol , ethanol and n-propanol absorbent respectively were measured by using micro laser holographic interference technique to validate the model proposed . The experimental values were in good agreement with the calculated ones .

  7. 在双流体模型中引入界面浓度输运方程,利用界面浓度和气泡平均Sauter直径模化各相间作用力。

    Interfacial area transport equation has been combined to a classical hydrodynamic two-fluid model to investigate the operation of a rectangular bubble column . Interfacial forces are calculated based on interfacial area concentration and average Sauter diameter .

  8. 用概率统计方法对测量结果进行了处理,计算了气泡速度、气泡直径、气泡频率、界面浓度等局部参数。

    A probability statistical method was used to calculate the local parameters .

  9. 膜/液界面浓度极化现象的介电解析

    Dielectric Analysis of the Concentration Polarization Phenomena at Membrane / Solution Interface

  10. 气液并流吸收近界面浓度分布不稳定性实时观测

    Real-time measurement of unstable concentration distribution near interface for gas-liquid cocurrent absorption

  11. 根据实验结果,提出了近界面浓度与两相相对运动速度的关系式。

    A relation of concentration near interface to flow velocity was proposed .

  12. 单个运动气泡近界面浓度场的研究

    Study of NEAR-INTERFACIAL concentration field of single moving bubble

  13. 气液两相泡状流界面浓度的研究

    Study on the Area Concentration of Air-Water Bubbly Flow

  14. 多组分相际传质近界面浓度场的测定

    Experimental study of concentration profile close to the interface for multicomponent gas-liquid mass transfer

  15. 运动气泡近界面浓度场的激光测量及其传质特性的研究

    Concentration fields and mass transfer behavior near a moving bubble interface by laser technique

  16. 随着油相侧溶质主体浓度的增加,水相侧近界面浓度的增加呈指数变化。

    The concentration near the interface on aqueous side increases exponential with the increase of bulk concentration on oil side .

  17. 枸杞子中铜的测定及其浓度分布特征气液并流吸收近界面浓度分布不稳定性实时观测

    Determination and concentration distribution of copper in fructus lycii Real-time measurement of unstable concentration distribution near interface for gas-liquid cocurrent absorption

  18. 直径较大时,局部气含率较大,气泡直径和上升速度较大,界面浓度较小。

    Larger diameter made the gas holdup higher , bubble diameter and rising velocity a litter bigger , and interface concentration smaller .

  19. 许多实验和操作都证明了这样一个事实,真正的热力学平衡是难以达到的,只要流速不为0,传质时的气液两相界面浓度就不可能达到平衡。

    A lot of experiments and operations have proved the fact if the flow rate is not zero , interfacial non-equilibrium exist in mass transfer .

  20. 对气泡传质过程的近界面浓度场进行了模拟计算,计算结果与实验结果相当吻合。

    Numerical simulation on the concentration field near gas liquid interface was made , and the results were in well accordance with the experimental ones .

  21. 但由于真实界面浓度的确定方法仍存在矛盾,也缺少一个直观的检测标准,因此文章中给出的数值仍为一相对的比较值。

    However , as is difficult in calculating real interface concentration , and the racking of direct measure standard , the value presented is still a relative one .

  22. 根据试验数据的分析结果,发展了一种垂直上升管内气液两相泡状流局部界面浓度预测模型。在本文实验条件下,该局部界面浓度模型预测结果能够与实验数据很好地符合。

    According to the experimental data , a new correlation for the prediction of local interfacial area concentration is developed , and it applies to upward bubbly flow in a vertical pipe .

  23. 使用标定好的双头电导探针技术,对垂直上升管内气液两相泡状流局部界面浓度和含气率分布特性进行了深入的实验研究。

    Using the verified double-sensor probe method , an experiment was carried out to study the distribution characteristics of the interfacial area concentration and void fraction for air-water bubbly flow through a vertical upward pipe .

  24. 对于气相阻力可以忽略的吸收过程,两相传质速率的大小主要取决于液相的溶质界面浓度和液膜厚度。

    For the absorption process in which the gas phase resistance to mass transfer between two phases is neglectable , the mass transfer rate is mainly dominated by liquid bulk concentration and thickness of liquid film .

  25. 在单层和多层外延结构中,界面浓度基本是突变的,过渡区约0.1μm。

    For the single layer and the multilayer structures , the concentration drop in interface between the active layer and the buffer layer or substrate are sharp and the width of interface region is about 0.1 μ m.

  26. 通过图像采集系统对干涉条纹的变化进行实时记录,并通过数字图像处理技术对干涉条纹图进行处理,计算得到了传质达到稳态后液相侧浓度分布和近界面浓度。

    Concentration distribution and concentration near the interface on liquid side were determined when mass transfer reached stable in terms of the shift of the interference stripes recorded by an image acquisition system and processed by a digital image processing system , respectively .

  27. 针对矩形流道内气、液流体的并流吸收传质过程,分别应用实时激光全息干涉术和激光多普勒速度仪对不同气、液流速下液相内近界面浓度分布与速度分布进行了实验观测。

    The process of absorption of CO_2 in ethanol was studied in a transparent channel under various flow conditions of a co-current gas-liquid flow , and the concentration and velocity distributions in the liquid in the vicinity of gas-liquid interface were measured with holographic interferometry and laser Doppler anemometer respectively .

  28. 结果表明,固液界面前沿浓度是指数震荡衰减的。

    The result shows that the concentration in the solid-liquid interface is exponentially damped oscillation .

  29. 蒸腾强度对根-土界面磷浓度的影响及其与吸收的关系

    Effects of Transpiration on the Concentration of P at the Root-soil Interface and Its Relation to the P Uptake

  30. 由水相侧浓度分布可以看出,近界面的浓度曲线近似为线性,但远离界面时则呈现明显的非线性。

    As shown in the concentration distribution profiles on aqueous side , the solute concentration varies approximately in linear within the interfacial region , whereas non-linearly varied far away from the interface .