Fluid Mechanics seventh edition by Frank M. White · Problem P6.22

Viscous Flow in Ducts — Frank M. White

Physics — Fluid Mechanics · laminar-pipe-flow

Problem

A steady push on the piston in Fig. P6.22 causes a flow rate Q=0.15Q = 0.15 cm3^3/s through the needle. The fluid has ρ=900\rho = 900 kg/m3^3 and μ=0.002\mu = 0.002 kg/(m⋅\cdots). What force FF is required to maintain the flow?

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