Question: ( 2 ) r = R pipe wall shear stress force, F R L P , F R = R 2 P . (

(2)r=R pipe wall shear stress "force, FR"L
P,FR=R2P.(Shear rate
.(Q) Hagen-Poiseuille Q=R4P8L)
( 2 ) r = R pipe wall shear stress "force, F R "

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