Centroid and centre of pressure

  • Thread starter Thread starter Pietair
  • Start date Start date
  • Tags Tags
    Centroid Pressure
Click For Summary
SUMMARY

The distance between the centroid and the centre of pressure for a submerged plane decreases as the depth of the fluid increases due to the relationship defined by the equation y'cp = density * sin(theta) * I_xx / (P_CG * A). As the depth increases, the pressure at the centroid (P_CG) rises, resulting in a reduction of the distance (y'cp) between the centroid and the centre of pressure. This phenomenon is critical in fluid mechanics, particularly in understanding hydrostatic forces acting on submerged surfaces.

PREREQUISITES
  • Understanding of hydrostatics and fluid mechanics principles
  • Familiarity with the concepts of centroid and centre of pressure
  • Knowledge of pressure distribution in fluids
  • Basic proficiency in using mathematical equations related to fluid forces
NEXT STEPS
  • Study the derivation of the centre of pressure formula in fluid mechanics
  • Learn about hydrostatic pressure distribution in fluids
  • Explore applications of centroid and centre of pressure in engineering design
  • Investigate the effects of fluid density and angle of inclination on pressure calculations
USEFUL FOR

Students and professionals in engineering, particularly those specializing in fluid mechanics, civil engineering, and hydraulic design, will benefit from this discussion.

Pietair
Messages
57
Reaction score
0

Homework Statement


Explain why the distance between the centroid and the centre of pressure for a plane submerged fluid decreases as the depth of fluid increases.

I know that the centre of pressure for a plane submerged fluid is located below the centroid because pressure increases with depth.

But why is the distance between centroid and centre of pressure decreasing as the depth of fluid increases?
 
Physics news on Phys.org
Anyone?
 
Well I am looking for same answer and what I found out is if there is not a conrete example that you actullay tried to solve there is not much help on the basics on this forum...
 
its because y'cp=density*sin(theta)*I_xx/(P_CG*A) as the depth increases the P_CG increases causing the y'cp (the distance between the two points) to decrease
 

Similar threads

  • · Replies 3 ·
Replies
3
Views
12K
Replies
3
Views
2K
  • · Replies 10 ·
Replies
10
Views
2K
  • · Replies 6 ·
Replies
6
Views
2K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 2 ·
Replies
2
Views
3K
Replies
1
Views
3K
Replies
3
Views
1K
  • · Replies 5 ·
Replies
5
Views
10K