1. History 1921.12. 16, Fritz Winkle observed the phenomena of fluidization and developed the gasifigator 1939. Warren Lewis and edwin gillil and discovered the technique of catalytic cracking with fast fluidization 1960s Douglass elliott began to use fluidized bed to produce steam

8 1 Characteristics of Gas-solid Two Phase Flow Rosin-Pammler formula R(dk)=exp(,/d) R(dK-weight percent of particle with d > dK n-index of non-evenness

1 Theory of Isothermal Free Jet Free jet Jet without the limitation of solid boundary 1. General Properties National Lab. of Coal Combustion. HUST Wuhan 430074 P.R. CHINA

1. Classification wall turbulence -friction of wall free turbulence interaction of fluid layers homogeneous turbulence isotropic turbulence National Lab. of Coal Combustion. HUST Wuhan 430074 P.R. CHINA

Combustion hydrodynamics Heat Transfer Mass Transfer Chemical Reaction Physical Procedures Chemical Procedure National Lab. of Coal Combustion. HUST Wuhan 430074 P.R. CHINA

8-1相对运动牵连运动绝对运动 8-2点的速度合成定理 8-3点的加速度合成定理

15-1约束虚位移虚功 15-2虚位移原理

14-1惯性力质点的达朗贝尔原理 14-2质点系的达朗贝尔原理 14-3刚体惯性力系的简化

5-1滑动摩擦 5-2摩擦角和自锁现象 5-3考虑滑动摩擦时物体的平衡问题 5-4滚动摩阻(擦)的概念

7-1刚体的平行移动 7-2刚体绕定轴的转动 7-3转动刚体内各点的速度和加速度 7-4轮系的传动比 7-5以矢量表示角速度和角加速度