Fluid Flow - Example
What is the critical flow rate for a 1 in I.D. pipe carrying water to maintain laminar flow?
R = 2vavgr??? = 2Q?/(?r?) = 2000 (critical)
? = 1 gm/cm = 1000 kg/m3 for water;
? = 1 x 10-3 Pl for water;
r = (1/2 in)*0.0254 m/in. Q = ???