DEVELOPMENT OF BOUNDARY L~AYER 
ON A SMOOTH FLAT PLATE 
TURBULENT 
BOUNDARY 
LLAMINAR 
SUB-LAYER 
COMPARISON OF VELOCITY PROFILES 
FOR LAMINAR AND TURBULENT BOUNDARY LAYERS 
TURBULENT 
I 
PROFILE 
I 
LAMINAR 
PROFILE 
- LOW THICKNESS - GREATER THICKNESS 
- LOW VELOCITIES NEXT TO SURFACE - HIGHER VELOCITIES NEXT TO SURFACE 
- GRADUAL VELOCITY CHANGE - SHARP VELOCITY CHANGE 
- LOW SKIN FRICTION - HIGHER SKIN FRICTION 
figure 7.24. Boundary Layer Charactorisfics