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ANSWER ONLY IF YOU ARE SURE A dimensionless combination of variables that is impor- tant in the study of viscous flow through pipes is called
ANSWER ONLY IF YOU ARE SURE
A dimensionless combination of variables that is impor-
tant in the study of viscous flow through pipes is called the Reynolds
number, Re, defined as VD/ where, as shown in figure below
is fluid density, V the mean fluid velocity, D the pipe diameter, and
the fluid viscosity. A Newtonian fluid having a viscosity of 0.35 N .s / m^2
and a specific gravity of 0.91 flows through a 25-mm-
diameter pipe with a velocity of 2.8 m/s
Determine the value of the Reynolds number using
SI units .
See figure below .
D
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