- #1

- 678

- 4

## Homework Statement

water flows from flow tank at A through cat iron pipeline to free surface at B . Given friction factor , f = 0.023, kinematic viscosity =

**1.02 x10^-6 (m^2 0 /s , coefficient of losses for entrance , bend , valve = 0.5 , 0.9 and 10 .**[/B]

in this question , i am asked to find the velocity , flow rate , type of flow and pressure at A .

for the first part , I'm asked to find the velocity . The flow rate is not given , how could the velocity be found ? Since Q = Av ,

## Homework Equations

## The Attempt at a Solution

i assume the flow as laminar at first , where reynold number less than 2000 ,

so i have f = 64 / Re

0.023 = 64(1.02 x10^-6)/ 1000 / ( 1000 x v x 150x10^-3) , v = 2.08x10^-8 , is my answer correct ? my reynold number is rather samll , which is 3.05 only , is it possible ? [/B]

is my answer correct ?