What is the relationship between y_c and y_R in fluid mechanics?

  • Thread starter Thread starter aaronfue
  • Start date Start date
Click For Summary
SUMMARY

The relationship between y_c and y_R in fluid mechanics is defined by the equation y_R = y_c + (I_xc / (y_c × A)), where y_c represents the centroid location of the gate and y_R denotes the center of pressure. This relationship is crucial for calculating hydrostatic forces on plane surfaces. The derivation and example calculation can be found in the article referenced from the Fundamentals of Fluid Mechanics (6th Ed.) by Munson, specifically on pages 6-8.

PREREQUISITES
  • Understanding of hydrostatic forces in fluid mechanics
  • Familiarity with centroids and center of pressure concepts
  • Knowledge of the equation for moment of inertia (I_xc)
  • Basic proficiency in using the textbook Fundamentals of Fluid Mechanics (6th Ed.) by Munson
NEXT STEPS
  • Study the derivation of the center of pressure in fluid mechanics
  • Learn about calculating hydrostatic forces on various plane surfaces
  • Explore the implications of moment of inertia in fluid applications
  • Review additional examples from the Fundamentals of Fluid Mechanics textbook
USEFUL FOR

Students and professionals in engineering, particularly those focusing on fluid mechanics, as well as anyone involved in calculating hydrostatic forces and understanding pressure distribution on surfaces.

aaronfue
Messages
118
Reaction score
0

Homework Statement



During the calculation of yR in fluid mechanics problem, hydrostatic force on a plane surface

Homework Equations



yR = yc+\frac{I_xc}{y_c×A}

The Attempt at a Solution



I can see how it is calculated but I've read through the chapter and I don't see how it is described. The textbook is Fundamentals of Fluid Mechanics (6th Ed.) by Munson.
 

Attachments

  • fluids example.JPG
    fluids example.JPG
    18.8 KB · Views: 549
Physics news on Phys.org
It looks like yc is the location of the centroid of the gate, while yR is the location of the resultant of the pressure acting on the gate, or the center of pressure.

This article (pp. 6-8) gives the derivation and an example calculation:
http://www.freestudy.co.uk/fluid mechanics h1/outcome11.pdf
 
  • Like
Likes 1 person

Similar threads

Replies
2
Views
2K
  • · Replies 4 ·
Replies
4
Views
3K
  • · Replies 5 ·
Replies
5
Views
643
  • · Replies 15 ·
Replies
15
Views
3K
  • · Replies 12 ·
Replies
12
Views
5K
Replies
1
Views
2K
Replies
1
Views
2K
  • · Replies 6 ·
Replies
6
Views
3K
  • · Replies 23 ·
Replies
23
Views
2K
  • · Replies 2 ·
Replies
2
Views
1K