查询词典 phase mixing

This thesis is to simulate three-dimensional gas-liquid two-phase flow in a new efficient aeration mixing tank, and to evaluate the performance of this equipment and to study the effects of operating parameters on volume fraction of the air phase in the tank by using commercial CFD software.

本文针对一种新型曝气搅拌设备，采用计算流体力学的方法用FLUENT软件来模拟设备内的气－液两相三维流动场，评价该设备的性能，考察设备内的气相分布情况随着操作参数的变化规律。

Moreover, the curve of mixing energies△G_m at different surface compressure vs molar fraction of nervonic acid appeared a positive deviation comparing to the ideal mixing surplus energies△G_M~1 curve, which indicated a phase separation phenomena in the mixed monolayer.

此外，在不同表面压下的混合自由能ΔG_m对神经酸摩尔分数曲线与理想的混合过剩自由能ΔG_M~1曲线相比出现相似的正偏差，说明这种混合单分子膜出现了相分离现象。

Then, in a transverse magnetic field, the bed expansion behavior, liquid-phase mixing characteristics and dynamic protein adsorption in the MSFB of the magnetic affinity adsorbent (mean size 153 mm, density 1.073 g/ml) made of agarose was studied.

在横向磁场中研究了平均粒径为153 m m 、密度为1.073 g/ml 的琼脂糖磁性粒子的磁稳流化床的膨胀规律、混合特性和蛋白质吸附行为。

At first, numerical simulation are made on the temporal developing gas-phase mixing layer where the convective mach number is in the region of subsonic(0.5) and transonic(0.8). For the temporal problem where Mc is 0.5, researches where the computational field contains different numbers of initial disturbances(so-called n period problem) are made respectively, and vortex's types of evolution in mixing layer including different numbers of initial disturbances are investigated; For the temporal problem where Mc is 0.8, the distinct shock let structure is obtained, and its mechanism is analyzed at the same time.

文中首先对对流马赫数为亚声速(0.5)、跨声速(0.8)的时间发展单气相混合层作了数值研究，对Mc为亚声速单气相时间发展混合层，分别研究了计算域包含不同数目的初始扰动周期问题，考查了不同周期数的混合层中涡的不同演化方式；对Mc为跨声速的单气相时间发展混合层，得到了清晰的小激波结构，同时分析了小激波的形成机理。

In chapter 2, the intensity and phase formulae of five photorefractive processes in intermediate regime are derived including the analytic expressions of codirectional parallel-or cross-polarization two-wave mixing in the depleted pump condition and the analytic expressions of contradirectional parallel-or cross-polarization two-wave mixing and degenerate four-wave mixing in the undepleted pump approximation.

给出了本文的结构和取得的主要结果。第二章推出了五种光折变过程的中间段强度与相位公式。既同向平行、交叉极化双光束耦合的大信号解析公式，异向平行、交叉极化双光束耦合以及简并四波混频的小信号解析公式。

Using diesel and paraffin chloride as disperse phase, the hydrophobic polymeric flocculant as flocculating agent, adding wetting reversed agent and frother to disperse phase, mixing those materials, the flotation agent, which is used to disposal oily waste water effectively is obtained.

用合成出来的疏水性高分子絮凝剂与表面活性剂（包括润湿反转剂和起泡剂），以及0#柴油和氯化石蜡-52复配叶轮气浮用浮选剂。

Of Fe , Cu in the metal phase and Mg, Si in the silicate phases to understand the processes of mixing of metal and silicate phases and further decipher the mechanism of formation of mesosiderite;(2) to study in detail the geochemical characteristics of each phase in the meteorite, to provide necessaryevidence for the model of formation of mesosiderite;(3) to study and update in detail the composition of each phase in the meteorite, and provide a new and complete set of data for understanding the mechanism of formation of mesosiderite.

Cu和硅酸盐相中的Mg， Si等中等挥发性元素的稳定同位素进行分析，判断中铁陨石的金属相和硅酸盐相混合过程的环境特征，进而阐明中铁陨石的形成机制；（2）对这块陨石的各相进行详尽的地球化学分析，通过这些相的地球化学关系判断中铁陨石的形成机制，对中铁陨石的形成模型提供必要的制约和证据；（3）全面更新对中铁陨石各矿物相化学成份的认识，为中铁陨石的成因之谜的全面揭开提供最新最完整的数据。

Characterization of Reservoir Fluids Based on previous publications on this topic, a theoretically correct algorithm capable of predicting the phase behavior of reservoir fluids with much less number of pseudo-components had been developed, the new algorithm had been tested by experimental data, and the computation efficiency show reasonable improvement over previous publications 3 Mixing Rule for Non-Ideal Systems Previous publications on this topic had been reviewed, a new density independent mixing rule which can give a smooth transition from van der Waals rule to G〓 model had been developed, with this rule G〓 model could be directly incorporated into cubic equation of states, ad hoc treatment adopted and problems met by previous publications were avoided.

高度非理想体系的混合规则系统总结了该领域的进展，建立了新的混合规则，新混合规则能平滑地从VDW流体转变为溶液模型，可以直接应用原溶液模型的参数，与已发表的各类方法相比，新模型具有更坚实的理论基础；该混合规则可以在低温低压至高温高全程范围内关联和预测体系的相态行为，包括高度非理想的体系；该混合规则经过了实验数据的检验，结果显示新混合规则的预测能力优于WS混合规则。

This problem is also important and valuable in Nonlinear Optics. It will be very helpful to understand how the aberrations affect the course of three- wave mixing, such as the change of conversion efficiency, the distribution of intensity and phase.Small signal solution of aberrated second harmonic generation is deduced from three-dimension three wave coupling functions. The numerical work gives out lot of results of different aberrations. The effects of the fundamental waves aberrations, which will change the conversion efficiency, distribution of intensity and phase in the frequency conversion, is analyzed. It shows that when walk-off and diffraction effects could be ignored approximately estimation of the phase distribution of second-harmonic wave could be done. The far field divergent angle and second moment radius of harmonic wave will vary with the aberration of fundamental wave, but the far field divergent angle will be obviously smaller than that of fundamental wave. The phase distribution of both fundamental and harmonic wave is measured using Hartmann-Shack wave front sensor in the experiment with 1064nm and 790nm lasers, respectively. Results are given.

首次从三维三波相互作用方程组推导得到了位相畸变光束倍频的小信号解；通过建立国防科学技术人学研究生院学位论文三维数值模型，编写相应仿真程序，首次得到了位相畸变光束倍频过程的大量计算结果，深入细致地研究了位相畸变光束经非线性光学频率变换后谐波的转换效率、光强分布、位相分布以及影响它们的各种因素；得出谐波的远场发散角和光斑二阶矩的变化规律会因为基波像差的不同而不同，但谐波的远场发散角明显地比相应基波的小的结论；得到了在走离效应和衍射效应等影响许多因素可以忽略的情况下，位相畸变传递到二次谐波的估算式；举例分析了KDP三倍频方案中，基波位相畸变对二次谐波和三次谐波的影响；实验工作中，用哈特曼一夏克传感器分别对IO64nm倍频过程和790飞秒超短脉冲倍频过程中的基波和谐波的位相分布进行了测量，给出了相应结果。

As a first step to industrialize this focusing coal liquefaction technology, it is essential to study the multiphase transport characteristics of this new type reactor. In this paper, mass transfer and mixing characteristics of a three-phase continuous loop reactor with a concentric draft tube were measured by the dynamic dissolved oxygen and saturated KCl solution pulse trace methods,with glass beads as solid phase, air as gas phase and tap water as liquid phase, respectively.

本文在同心内置Φ 0.14×1.5m导流筒的Φ 0.2×2.5m有机玻璃环流反应器中，以空气和水为气、液相，玻璃珠为固相，分别利用动态溶氧法与饱和KCl脉冲示踪法测量了液相体积传质系数和轴向分散系数，考察了表观气速、进料浆速、固含率、固相颗粒直径、液相表面张力以及操作方式对上述两个传递参数的影响规律，并将实验结果关联为量纲为1关联式；同时，根据环流反应器的结构特点，建立了传质系数分区模型和轴向分散系数分区模型且分别获得了解析解，对床层传质和混合的不均匀性做了理论分析。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。