For low-speed (laminar) steady fl ow through a circular pipe, as shown in Fig. P1.12
Chapter 1, Problem p1.12(choose chapter or problem)
For low-speed (laminar) steady fl ow through a circular pipe, as shown in Fig. P1.12, the velocity u varies with radius and takes the form u 5 B p (r0 2 2 r2 ) where is the fl uid viscosity and Dp is the pressure drop from entrance to exit. What are the dimensions of the constant B ? r = 0 r u (r) Pipe wall r
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