What is the Time to Drain a Tank with a Small Hole at the Base?

  • Thread starter Thread starter powerbuddy
  • Start date Start date
  • Tags Tags
    Density Fluid
AI Thread Summary
To calculate the time it takes for a large tank with a small hole at the base to drain completely, the Torricelli's equation can be applied. The discussion indicates that the hole's diameter is significantly smaller than the tank's diameter, allowing for simplified calculations. Participants note that viscosity effects can be ignored for this problem. The primary focus is on applying the principles of fluid dynamics to derive the solution. Understanding the relationship between the height of the water and the flow rate through the hole is essential for solving the problem.
powerbuddy
Messages
5
Reaction score
0
A large tank with Diameter D, open to the air , contains water upto heigh h . A small hole with diameter d( d<<D) is made at the base of the tank. Ignoring the effects of visocity , calculate the time it takes for the entire water to drain completely.
 
Physics news on Phys.org
ok. so what's the problem? what have you done already?
where are you stuck?
 
that would be a streamline problem solved using the Torracelli eqn, n'est pas?
 

Thread 'Errors and significant figures'

I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
View full post »
Thread 'A cylinder connected to a hanging mass'

Thread 'A cylinder connected to a hanging mass'

Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
View full post »

Similar threads

Pressure just before the exit hole in a draining tank
Replies
7
Views
2K
Time to drain water through a pipe
Replies
6
Views
9K
Time it takes for a water tank to empty
Replies
9
Views
6K
Finding power as a function of time in transferring water
Replies
11
Views
2K
Fluid statics - two water tanks
Replies
6
Views
3K
Calculating the Flow Speed of Tea In a Tank
Replies
4
Views
2K
Solving Water Storage Tank Problem with Bernoulli's Equation
Replies
3
Views
2K
Time taken for water to drain from a tank through a pipe (fluid mech./Bernoulli)
Replies
2
Views
9K
Diameter of hole vs time to submerge
Replies
8
Views
3K
Fluid Dynamics: Waterflow out of a Tank
Replies
4
Views
2K

Hot Threads

Recent Insights

Back
Top