In air-water system the influence of gas superficial velocity on hydrodynamic parameters and volumetric mass transfer coefficient ( k a ) is investigated .

在空气-水体系研究了 表 观气 速对流体动力学参数和传质动力学参数的影响；

The influence of the void fraction on the shape of the pressure ring is the greatest the superficial velocity 's is secondary and the curvature radius ' is the least .

压力环形状受含气率影响最大、 表 观 液 速次之、曲率半径影响最小。

It can be proved by the result simulated by using Mashima and Ishii two-phase model that the effect of further increase of air superficial velocity will decrease the boiling heat transfer is due to the change of the flow pattern from the bubble flow to the slug flow .

用Mashima和Ishii的两相流模型进行了计算，结果说明了这种气 速影响的原因是由于由泡状流向弹状流流型的转变。

Gas holdup is a function of gas superficial velocity .

气含率与 表 观气 速呈幂率关系，气含率 随 表 观气 速 的 增加而 增加，并且最终趋于稳定。

The length of Taylor bubble is always increases with increase of gas superficial velocity .

无论在高浓度还是低浓度CMC溶液中，气弹长度均随气 速的增加而增加，随 液 速的增加而减小。

Experiment results show that circulating flowrate superficial velocity and density size of particles all affect the RTD .

结果表明，影响大颗粒停留时间的主要因素是循环流率、 表 观流化气 速、颗粒的密度和尺寸。

When the liquid superficial velocity was relatively low with increasing mixture velocity the chaos of liquid slug length fluctuation would decrease .

而液相 折算 速度较小时，随着混合速度的增加，液塞长度波动的混沌程度减小。

For the two systems the gas holdups in the riser and downcomer liquid circulation velocity and volumetric mass transfer coefficient increase but the circulation time and mixing time decrease with the increasing of the gas superficial velocity .

上述两种体系的气含率、液体循环速度、体积传质系数均随 表 观气 速的增加而增大，而循环时间和混合时间则随 表 观 气 速的增大而降低。

The results showed that the effect of gas superficial velocity on liquid slug length was greater than the effect of liquid superficial velocity .

结果表明：气相 折算 速度对液塞长度的影响远大于液相折算速度。

The Measurement of Local Gas Holdup under High Superficial Velocity in Bubble Column

高气 速下鼓泡塔中气含率分布的测定

Simulation results indicate that the structure of distributor and gas superficial velocity have some influences on the bubbling phenomena and the formation rise and break of bubbles are accelerated with increasing the gas superficial velocity .

其研究结果表明： 表 观气 速和分布板结构对气泡行为及 颗粒 轴向 速度均有一定影响，随表观气速的增加，气泡形成、上升、破裂的速度加快，且 颗粒 轴向速度也相应增大；

When the liquid superficial velocity retains a lesser value the Hurst exponent which reflects the long-distance correlation characteristic of the liquid slug lengths fluctuation has a linearly increasing relationship with the superficial mixture velocity . Then the liquid slug length distributions obey the fractal statistics ' law .

当 折算液 速较小时，反映液塞长度波动长程相关性的Hurst指数与气液相混合速度具有递增的线性关系，液塞长度分布遵循分形统计规律。

When gas superficial velocity and liquid superficial velocity are constant the liquid slug velocity and the liquid slug length will increase slightly as the inclination angle of the pipeline increases .

当气、液相 折算 速度恒定时，随着下倾管倾角的增大，液塞速度、液塞长度都稍有增大。

When liquid superficial velocity is constant the liquid slug velocity will increase linearly with the increase of gas superficial velocity while the liquid slug length will decrease by hyperbola .

当液相 折算 速度恒定时，随着气相折算速度的增大，液塞速度线性增大，而液塞长度呈双曲型减小；

Secondly the full field velocity distribution of particles in bubbling fluidized beds was measured under different superficial velocity different tube arrangement and different tube pitches .

其次，采用图像法测速技术对二维冷态鼓泡流化床在不同 表 观 风速、顺错列布置、管束横向间距、纵向间距下的工况进行实验，获得了各工况下的即时速度矢量分布场。

The effects on solids holdup of heat exchanger tube bed height static pressure drop and average solids holdup of inlet chamber by superficial velocity were studied in different main distributors .

在不同结构形式的主分布器条件下，研究了 表 观 液 速对换热管中固含率、下管箱内床层高度、静压降及平均固含率的影响。

The pressure drop of the burner is in direct ratio with the square of the superficial velocity and the porous media thickness .

在多孔介质的类型和运行温度不变的情况下，往复式多孔介质燃烧器的压降与 空 截面 流速的平方成正比，与多孔介质的厚度成正比；

The experimental results show that the gas-liquid mass transfer coefficient of oxygen increases with the gas superficial velocity in the relatively large range of gas velocity .

结果表明，在纯水和添加表面活性物质的情况下，较大气速范围内，氧的气液体积传质系数随气 速提高而增加。

The influence of pH value superficial velocity of the gas phase on the destruction rate of p-nitrophenol was ( discussed ) .

首先探讨了pH值和气 速对对硝基苯酚降解速率的影响。

The length of period decreases with gas superficial velocity liquid superficial velocity increasing logarithmic coordinates in a linear relationship .

严重段 塞 流具有严格的周期性，周期长度随气液相 折算 流速增大而减小，在对数坐标下呈线性关系。

Three dual-impeller configurations were tested with respect to power consumption gas-liquid volumetric mass transfer coefficient with the combination of surface aeration and sparger aeration at the gas superficial velocity of 2.45 4.90 and 7.35 mm / s.

在直径380mm、液位为530mm的表面曝气反应器中， 表 观气 速为2.45的条件下，实验测定了3种不同构型的双层桨组合的气液传质系数和搅拌功率。

Many tests for nitrogen-water system were made with this apparatus and the effects of gas superficial velocity pressure and superficial tension on gas holdup were investigated .

进行了氮气-水体系的冷模运转试验，考察了表观气 速、压力和表面张力对环流反应器中气含率的影响。

The temperature in the porous media increased with the increase of gas superficial velocity while the equivalent ratio and the on-off period kept constant .

在切换周期和当量比一定时，随着 空 截面 流速的增大，多孔介质中的温度随之升高；

The results indicate that the distributions of liquid slug lengths can be well fitted by log-normal distributions and the average liquid slug length have a typical function relationship of quadratic polynomial with the superficial mixture velocities of gas-liquid in a given liquid superficial velocity .

试验结果表明，该流态下的液塞长度呈对数正态分布，平均液塞长度与 气液相混合 速度具有典型的二次多项式关系。

The results showed that the condensation efficiency and the sulphuric acid concentration were affected by superficial velocity considerably then the condensation temperature .

结果表明， 空 塔 速度对冷凝效率及成酸浓度影响最大，冷凝器出口温度次之。

The effect of air superficial velocity solid rate and initial moisture content on the heat and mass transfer were discussed .

对气体 表 观 流速，固体循环率，颗粒初始含湿量对传热传质的影响进行了分析和讨论。

The fractal dimension of the fluctuations are lower than 1.5 in all flow regimes besides the annular flow with great gas superficial velocity .

实验发现环状流区高气 速时的压差波动分维数大于1.5，在其它流型内都小于1.5。

The nonlinear fitting of Redlich-Peterson isotherm and Freundlich isotherm were better than the linear fitting . ( 4 ) A mass transfer model of fixed-bed system was derived . The effects of mass transfer coefficient temperature inlet concentration and superficial velocity on concentration distribution were studied .

Redlich-Peterson和Freundlich非线性拟合优于线性拟合。（4）建立活性炭固定床传质模型，考察传质系数、温度、浓度和 空 塔 速度对浓度分布的影响。