> I 



10" 



10^ 



102 



10^ 



10° 



10- 



10° 



IQi 



102 



103 



10" 



10^ 



106 



10' 



-' - 1 g d3/.^2 

 7 ^ 



Figure 4-9. Fall velocity versus buoyancy index for an isolated 

 sphere or common natural grain. 



5.0 



4.5 



4.0 



a 3.5 



3.0 



2.5 



2.0 



10^ 



102 



103 



10" 



10^ 



106 



2i-1 gd3^2 



7 



Figure 4-10. Approximate value of power n relating to equation 

 (4-9) for fall velocity in concentrated suspensions 

 of spheres and common grains. 



4-20 



