CHE/ME 109 Heat Transfer in Electronics. LECTURE 18 – FLOW IN TUBES. LAMINAR FLUID FLOW IN TUBES. FORCE BALANCE OVER A CYLINDRICAL VOLUME IN FULLY DEVELOPED LAMINAR FLOW PRESSURE FORCES = VISCOUS FORCES THE DIFFERENTIAL BALANCE IS: . LAMINAR FLUID FLOW .
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LECTURE 18 –FLOW IN TUBES
FULLY DEVELOPED LAMINAR FLOW
IN TERMS OF THE MEAN VELOCITY
THROUGH A TUBE AT A SPECIFIED FLOW RATE IS
CALLED PRESSURE DROP, ΔP
LAMINAR FLOW YIELDS:
Dh = Do -Di