Analysis of Results
For each of the mercury manometer readings, convert the head loss in cm of mercury to head loss in cm of water by multiplying by 12.6.
- Calculate the volumetric flow rate by dividing the volume by the time of collection:πΜ=π/π‘. Note: be careful with units (1m3= 1000 litres and 1 litre = 1000ml)
- Calculate the average velocity: π’=4πΜ/ππ2.
- Calculate the Reynolds number: Re=ππ’π/π.
- Calculate the friction factor three different ways:1.Solve the Darcy equation for friction factor πand use your data to evaluate the value at each point.2.Use the Blasius equation.