图1 曝气池轴测图

Fig.1 Aeration tank axonometric diagram

图2 CMC水溶液黏度随剪切速率的变化

Fig.2 Viscosity as function of shear rate for CMC aqueous solutions with different mass fraction

图3 气体速度分布（X=0，Z=0，Y=0.25 m）

Fig.3 Gas velocity profile (X=0, Z=0, Y=0.25 m)

图4 实验装置1—空气泵；2—空气转子流量计；3—光源；4—微孔曝气盘；5—水箱；6—高速摄像机；7—计算机

Fig.4 Diagram of experimental device1—air pump; 2—air flow rate meter; 3—lighting source; 4—microbubble aerator; 5—water tank; 6—high speed camera; 7—computer

图5 不同液体气含率的模拟与实验结果对比

Fig.5 Comparison of simulation and experiment results for different liquid-gas holdup

图6 Y=0.25 m处不同浓度的CMC水溶液中的气体平均速度

Fig.6 Average gas velocity in aqueous solution of CMC with different concentration at Y=0.25 m

图7 0.3%CMC水溶液中不同表观气速下流场内部流线

Fig.7 Internal flow diagram of flow field with different apparent gas velocities in 0.3%CMC aqueous solution

图8 0.3%CMC水溶液中不同表观气速下气体速度分布

Fig.8 Gas velocity distribution at different apparent gas velocities in 0.3%CMC aqueous solution

图9 0.3%CMC水溶液中不同表观气速下流场内涡量云图

Fig.9 Cloud picture of vortex flow in 0.3%CMC aqueous solution with different apparent gas velocities

图10 0.3%CMC水溶液中不同表观气速下监测点处涡量分布

Fig.10 Vorticity distribution at monitoring points at different apparent gas velocities in 0.3%CMC aqueous solution

图11 0.3%CMC水溶液中不同表观气速下流场内Q值分布云图

Fig.11 Cloud diagram of Q value distribution in 0.3%CMC aqueous solution at different apparent gas velocities

图12 0.3%CMC水溶液中不同表观气速下监测点处Q值分布

Fig.12 Q value distribution at monitoring points at different apparent gas velocities in 0.3%CMC aqueous solution

图13 表观气速为4.18×10-3 m/s时流场内涡结构演变过程

Fig.13 Vortex structure evolution in the flow field when the apparent gas velocity is 4.18×10-3 m/s

图14 表观气速为8.35×10-3 m/s时流场内涡结构演变过程

Fig.14 Vortex structure evolution in the flow field when the apparent gas velocity is 8.35×10-3 m/s

图15 表观气速为1.25×10-2 m/s时流场内涡结构演变过程

Fig.15 Vortex structure evolution in the flow field when the apparent gas velocity is 1.25×10-2 m/s

图16 表观气速为1.67×10-2 m/s时流场内涡结构演变过程

Fig.16 Vortex structure evolution in the flow field when the apparent gas velocity is 1.67×10-2 m/s

图17 表观气速为4.18×10-3 m/s时不同液体中流场内部流线

Fig.17 Internal flow diagram of flow field in different liquids with an apparent gas velocity of 4.18×10-3 m/s

图18 表观气速为1.25×10-2 m/s时不同液体中流场内部流线

Fig.18 Internal flow diagram of flow field in different liquids at an apparent gas velocity of 1.25×10-2 m/s

图19 不同液体中气体速度分布（Z=0，Y=0.25 m）

Fig.19 Gas velocity profiles in different liquids (Z=0，Y=0.25 m)

图20 表观气速为4.18×10-3 m/s时不同液体的涡量云图

Fig.20 Vorticity cloud diagram of different liquids at an apparent gas velocity of 4.18×10-3 m/s

图21 表观气速为1.25×10-2 m/s时不同液体的涡量云图

Fig.21 Vorticity cloud diagram of different liquids at an apparent gas velocity of 1.25×10-2 m/s

图22 不同液体中涡量分布（Z=0，Y=0.25 m）

Fig.22 Vorticity distribution in different liquids (Z=0，Y=0.25 m)

图23 表观气速为4.18×10-3 m/s时不同液体的Q值云图

Fig.23 Q criterion of different liquids at an apparent gas velocity of 4.18×10-3 m/s

图24 表观气速为1.25×10-2 m/s时不同液体的Q值云图

Fig.24 Q criterion of different liquids at an apparent gas velocity of 1.25×10-2 m/s

图25 不同液体中Q值分布（Z=0，Y=0.25 m）

Fig.25 Distribution of Q criterion in different liquids (Z=0，Y=0.25 m)

图26 同一表观气速下清水中涡结构演变过程

Fig.26 Vortex structure evolution in clear water at the same apparent gas velocity

图27 同一表观气速下0.3%CMC水溶液中涡结构演变过程

Fig.27 Vortex structure evolution in 0.3%CMC aqueous solution at the same apparent gas velocity

图28 同一表观气速下0.4%CMC水溶液中涡结构演变过程

Fig.28 Vortex structure evolution in 0.4%CMC aqueous solution at the same apparent gas velocity

图29 同一表观气速下0.5%CMC水溶液中涡结构演变过程

Fig.29 Vortex structure evolution in 0.5%CMC aqueous solution at the same apparent gas velocity