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0 votes
1 answer
157 views

How do I determine the moment of force that would have to be applied to the shaft to open the gate in this question on fluid statics?

I am presently studying fluid statics from Munson's textbook. I do not understand part (b) of example 2.6. The full question is as follows: GIVEN The 4-m-diameter circular gate of Fig. E2.6a is ...
Siddharth Yajaman's user avatar
0 votes
1 answer
114 views

Angle of attack for torque calculation from buoyancy force

To calculate the torque caused by the buoyancy force I need the length and the angle but what angle should I use? Should I use the angle of from the center at the bottom of the angle from the center ...
Babar's user avatar
  • 7
1 vote
4 answers
265 views

Can I create a whirlpool/vortex around a horizontal axis in a flat bottle using motor?

I am using this flat bottle: I fixed a motor at the centre of one of the flat sides and attached an impeller. I thought this will create some kind of whirlpool effect but as you can guess, since the ...
Aamer Jalal's user avatar
0 votes
2 answers
135 views

how to find torque from force due to pressures that change as a function of z

My teacher is very strict about copying his work so I will have to explain it. We have a wall with two fluids of different constant densities and depths. The wall is 'L' long. The wall has a section ...
franko's user avatar
  • 1
0 votes
1 answer
651 views

How to use the moment-of-momentum equation for water flowing through a pipe?

I am having a lot trouble understanding this problem, I don't even know where to begin or how to articulate my difficulties, but I will try my best. Is the question asking to find the torque ...
G. Mahler's user avatar
2 votes
2 answers
959 views

Calculate hydraulic torque from motor HP, hydraulic pump and gearbox

I am curious about the design considerations for a hydraulic system. Let's say you have a 3HP 1200RPM motor you also have a hydraulic pump that's rated 4LPM and pressure of 40MPA rated for 40RPM MAX ...
user1610950's user avatar
2 votes
2 answers
254 views

Buoyance+torque generated force

I need to design a pivot arm which is pulled up by a float (buoyancy force). In the upper positions of the lever arm, there's a mass trying to pull down. The reason that I'm presenting this problem ...
Joaquin Osses's user avatar
8 votes
5 answers
5k views

Torque converter torque multiplication

I keep reading all over the internet that a torque converter multiplies torque at stall speed. Every explanation I have found sounded more like hand-waving than quantitative physical explanation. ...
gsimard's user avatar
  • 181