Calculating Hydrostatic Force on valve cavity in a Solenoid Valve

Click For Summary
SUMMARY

The discussion focuses on calculating hydrostatic force in a solenoid valve, emphasizing that maximum static pressure occurs at full open flow near the inlet. It is established that pressure in the valve cavity varies with the valve's opening degree, leading to non-uniform pressure along the flow path from port A to port B due to area changes. As the valve closes, static pressure becomes more uniform but decreases in value. The force exerted on the valve walls fluctuates with the varying static pressure along the valve path.

PREREQUISITES
  • Understanding of fluid dynamics principles
  • Knowledge of solenoid valve operation
  • Familiarity with pressure measurement techniques
  • Basic concepts of hydrostatic force calculations
NEXT STEPS
  • Research hydrostatic pressure calculations in fluid systems
  • Explore solenoid valve design and its impact on flow dynamics
  • Learn about pressure drop analysis in piping systems
  • Investigate the effects of valve geometry on flow characteristics
USEFUL FOR

Engineers, fluid mechanics specialists, and anyone involved in the design and analysis of solenoid valves and fluid systems will benefit from this discussion.

jackmrrabbit
Messages
5
Reaction score
0
TL;DR
By any chance, can someone help me understand how one would calculate force acting on the walls of the valve cavity? Is pressure usually assumed to be constant? Assuming the fluid is an incompressible fluid. Thank you.
91050091-D759-4EF5-95B2-C04AC7E07234.jpeg
 
Physics news on Phys.org
The maximum static pressure it will have while flowing will be less than the static pressure at the inlet. While flow is passing from port A to port B the pressure will drop through the restriction near the "valve core bottom".
 
  • Like
Likes   Reactions: jackmrrabbit and Lnewqban
Welcome!
Pressure in the valve cavity should change according to the degree of closing-opening of the valve.
 
Lnewqban said:
Welcome!
Pressure in the valve cavity should change according to the degree of closing-opening of the valve.
If the valve was set to the open position, pressure would still not be constant throughout the path from A to B due to area changes right?
 
jackmrrabbit said:
If the valve was set to the open position, pressure would still not be constant throughout the path from A to B due to area changes right?
Would force be constant?
 
jackmrrabbit said:
If the valve was set to the open position, pressure would still not be constant throughout the path from A to B due to area changes right?
If there is flow when the valve is set to full open, then the pressure will not be constant throughout the path from A to B.
 
jackmrrabbit said:
Would force be constant?
The force on the walls will vary as static pressure varies along the path of the valve.
As the valve closes, and flow is reduced, the static pressure becomes more uniform along the path, but its value is lower.
For your calculation, maximum static pressure should happen at full open flow and closer to the inlet.
 

Similar threads

High School Validity of hydrostatic pressure equation
  • · Replies 5 ·
Replies
5
Views
1K
Undergrad Hydrostatic pressure inside an inverted tube
  • · Replies 12 ·
Replies
12
Views
2K
High School Fully submerged block in a pool of water
  • · Replies 3 ·
Replies
3
Views
2K
Solenoid valve thermal part
  • · Replies 24 ·
Replies
24
Views
2K
Undergrad A specific case of an exception to Archimedes' Principle?
  • · Replies 40 ·
2
Replies
40
Views
4K
Undergrad Hydrostatics: Pascal's principle and ocean depth
  • · Replies 13 ·
Replies
13
Views
3K
Undergrad Regarding the pressure at a point in a "rested" fluid
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Floating, hydrostatic forces, average density
  • · Replies 6 ·
Replies
6
Views
2K
Graduate Hydrostatic equilibirum in slowly rotating star
  • · Replies 2 ·
Replies
2
Views
1K
Undergrad How Do You Calculate Width in Hydrostatic Force Problems with Varying Depths?
  • · Replies 2 ·
Replies
2
Views
2K