F=1.21*Kr-6*(Vmid-28r4.047 R2=0.92 

 Sand Flux (g/cm2/min) 



30 



(V-V*) (cm/s) 



* Basin 



Power Threshold, F 



Figure 25. Basin flux for 7.5-min test 



F= 1.04*1(T-5*(Vmid-28r3.52 R2=0.95 

 Sand Flux (g/cm2/min) 



30 



(V-V*) (cm/s) 



* Basin 



Power Threshold, F 



50 



50 



Figure 26. Basin flux for 2.5-min test 



60 



