quiz 2: regarding to my face book page #LEARN ENGINEERING

 DATE OF QUIZ ASKED :29-03-2018

Daily quiz ; what is renold's number (re) and its use ?

Calculate Reynold’s number, if a fluid having viscosity of 0.4 Ns/m2 and relative density of 900 Kg/m3 through a pipe of 20mm with a velocity of 2.5  m/s

solution :

given :

viscosity = 0.4 Ns/m2

density   = 900 kg/m3

diameter = 20 mm(0.02 m)

velocity   = 2.5 m/s

                                               =112.5

 ( which is lesser the 2300 so it is laminar flow )

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