Reynold's number can be calculated using the equation,
I will do a sample calculation for the first flow rate of
Here is the diameter of the pipe given as,
is the velocity of the fluid given as,
is the densty of water given as,
is the dynamic viscosity of water given as,
So now,
Now the frictional factor can be calculated using this Reynlod's number and the relative rouhness
Relative roughness is given as,
here is the roughness given as, ,
So,
Looking at the figure we easily get the value of the friction factor as,
Similarily we can find the values for other flow rates,
how to find the reynold number and friction number? Test section: Rough pipe Test section diameter:...
how to find the reynold number and friction number? Test section: Rough pipe Test section diameter: 0.0254m Area 5.067x10-4m2 Water temperature : 27°C Pipe Length : 1m Density at 27°C: 996.59 kg/m3 Dynamic viscosity at 27°C: 0.8509x10-3 Pas Theoretical value: Roughness: 0.0015 mm Flowrate, o (m^3/h) 1.4 Velocity(m/s) Reynold number, Re 0.767 Friction factor 1.2 0.658 1.0 0.548
what is the value by using moody chart? Test section: Rough pipe Test section diameter: 0.0254m πά Area = 5.067x10-4m 4 Water temperature : 27°C Pipe Length im Density at 27°C: 996.59 kg/m3 Dynamic viscosity at 27°C: 0.8509x10-3 Pas Flowrate, e (m^3/h) Velocity(m/s) Velocity head(m) Friction factor Hf(head in- head out) Km) 17.50 17.25 1.4 0.767 10.61 10.08 1.2 0.658 1.0 15.75 0.548 9.73 Roughness: 0.0015.mm Flowrate, HfChead in- (m^3/h) head out) (m) 1.4 5.75 1.2 4.05 Velocity(m/s) Velocity head(m)...
how to find the friction factor by using only experimental data, not the theoretical. Mann Tahoma 11 Al Paste B I U abe X, X A- Aa-A Font 21 Paragraph Clipboard 2 RESULT 2.1 Experiment 1: Smooth Pipe Test section: Smooth pipe Test section diameter: 0.0254m Area="de = 5.067x10-4m Water temperature : 27°C Density at 27°C: 996.59 kg/m3 Dynamic viscosity at 27°C: 0.8509x10-3 Pas Clipboard Font Paragraph Styles 1.0 7.00 16.66 18.84 17.75 27.3 22.5 24.9 9.2 9.1 9.15 Experimental...
Engineering Fluid Mechanics PO 17: Water flows through a section of a pipe of length L and diameter D as indicated in the figure. The pipe has a roughness of k, = 0.3mm. The discharge is Q = 1m/s. The kinematic viscosity of water is V = 10 m/s. (a) What is the friction factor ? (Moody diagram on next page). (b) What is the head loss over the pipe section of length L? (c) What horizontal force is required...
Friction losses in expansion, contraction, and pipe fittings Example An elevated storage tank contains water at 15°C as shown in Figure. It is desired to have a discharge rate at point 2 of 28.8 m3/h. What must be the height H of the surface of the water in the tank relative to the discharge point? The pipe is commercial steel pipe (roughness of pipe surface e = 0.045 mm). Water density and viscosity at 15°C is 999 kg/m2 and 1.1.10-3...
CENTRE INDEX NUMBER SECTION B 30 marks] Calculate the discharge through a pipe of diameter 200 mm when the difference of pressure head between the ends of the pipe 500 m apart is 4 m of water. Take the value off= 0.009 in the formula hl= a) 19.5e/s b)2.0es e)03 m's d) 29.3 e/s 2. A scale 1:50 scale model of ship is towed through sea water at a speed of 1 ms. A force of 2 N is required...
For the three connected reservoirs with the given information, calculate the water velocity in each pipe, neglecting the minor losses Patm Zв 850 f. =700 ft. d 1.1 ft Patm =800 ft. d 1 ft f=0.03 atm in all pipes ZA838 ft. d 1.2 ft =600 ft =805 ft. Datum F (velocity, ft/s x diameter. (Vd) for water at 6 Valu 8000 8 10 0.1 0.2 0.4 0.6 0.8 1 40 60 80 100 200 400 600 800 1000 2...