Recent content by Zaxo3000

First of all I can't see where the equation at http://www.lmnoeng.com/Tank/TankTime.htm takes pressure into account so I don't know how to "modify this treatment to include the other effects as follows: DP = rho * g * h = KT * rho * v^2/2 + f (L/D) * rho * v^2/2" Or where this came from or...

Hey so since Reynolds Number = pvD/μ and in this case p=Density of water = 1000 kg/m³ the pipe diameter D = 0.011 m The dynamic viscosity of water is 1.002 mPa•s 20 °C (the temperature of testing) and the velocity that was initially measured of the water exiting the pipe was 0.856 m/s...

I have a tank (actually a PVC tube with an end cap) that has an interior diameter of 86 mm. It stands on its circular face. Coming out near the bottom of the tank at a right angle is a metal pipe 11 mm in diameter (interior) and 312 mm long (in total that is, note that some of the pipe is...

Thanks a lot for going to the trouble of reading all my work and helping me. At current what you say seems like the most logical explanation. And thanks for the tip.

I added a lot of additional information into the original question. You now know as much as I do about this. Can you figure it out?

Thanks for the response. I've corrected my question now, i actually meant the density that was substituted into Poiselles formula with water colum height and gravity in place of pressure difference. Ill insert some paragraph breaks too. Also even your figures show the castor oil is hundreds...

REWRITTEN: Well if you're interested I have a tank (actually a PVC tube with an end cap) that has an interior diameter of 86 mm. It stands on its circular face. Coming out near the bottom of the tank at a right angle is a metal pipe 11 mm in diameter (interior) and 312 mm long (in total that...

Thanks edgepflow for the link. However that websites seems to be focused more on a Torricelli's law situation, which was created for holes. It does appear to take into account an oriface discharge constant but only relates it to the type of hole. As a large part of my experiment will be testing...

Its a vertical standing tank, on its circular face.

We have a cylindrical tank of known dimensions. Attached at the bottom is a pipe perpendicular to the tank of known dimensions. We fill the tank with a liquid and let it drain out through the pipe. What formula will predict the volume of the tank at any time t? I believe the Hagen–Poiseuille...