Fluid Mechanics: Net Force & Point of Action Calculation

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SUMMARY

The discussion focuses on calculating the net force on a vertical lock gate due to water pressure differences. The water levels are 10.0 m on one side and 4.0 m on the other, necessitating the use of hydrostatic principles rather than Bernoulli's Equation. Participants emphasize the importance of determining pressure differences at various heights and integrating these to find the total force and its point of action. The correct approach involves hydrostatic pressure calculations rather than dynamic fluid equations.

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Homework Statement



Question 1. Water is stored either side of a vertical lock gate as shown in Figure Q1 The water level on one side of the wall is 10.0 m, on the other side it is 4.0 m. Determine the net force on the wall, per metre length, and the location of the point of action of the force.
10.0
4.0

Homework Equations



Bernoulli's Equation

The Attempt at a Solution



I wasn't sure at all how to answer the question
 
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Is there meant to be a diagram attached?

This looks like a hydrostatics question so Bernoulli's eqn is not what you want.
 
noah176 said:

Homework Statement



Question 1. Water is stored either side of a vertical lock gate as shown in Figure Q1 The water level on one side of the wall is 10.0 m, on the other side it is 4.0 m. Determine the net force on the wall, per metre length, and the location of the point of action of the force.
10.0
4.0

Homework Equations



Bernoulli's Equation


The Attempt at a Solution



I wasn't sure at all how to answer the question

Welcome to the PF.

If you could scan & post a copy of the figure being referenced, that would help out some. And what do you mean by Bernoulli's Equation being the only relevant equation?

So it sounds like you need to figure out the pressure difference on the wall at each height h, and integrate the difference in forces on the wall from the bottom to the top. Does that make any sense?
 

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