Supporting Fluid: Reducing Shear Stress with Wall

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SUMMARY

The discussion centers on the necessity of walls in fluid dynamics to eliminate shear stress. It is established that without a wall, fluid movement would be continuous, leading to the generation of shear stress on the fluid itself. The participants emphasize the role of walls in providing a boundary that stabilizes fluid behavior and reduces shear stress. The inquiry into the relationship between walls and shear stress highlights fundamental principles of fluid mechanics.

PREREQUISITES
  • Understanding of fluid dynamics principles
  • Knowledge of shear stress and its implications in fluid behavior
  • Familiarity with boundary conditions in fluid mechanics
  • Basic grasp of fluid flow concepts and equations
NEXT STEPS
  • Research the Navier-Stokes equations and their application in fluid dynamics
  • Explore the concept of boundary layers in fluid flow
  • Learn about the effects of wall roughness on shear stress in fluids
  • Investigate methods to measure shear stress in various fluid systems
USEFUL FOR

This discussion is beneficial for students and professionals in fluid mechanics, mechanical engineers, and anyone involved in the study of fluid behavior and shear stress management.

werson tan
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Homework Statement


why the fluid need the wall to eliminate the shear stress?

Homework Equations

The Attempt at a Solution


is it because if there is no wall to support the fluid , the fluid would move continously , resulting the shear stress act on water?
 

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Here again, your question (and the accompanying diagram) does not make sense to me. Where did this diagram and caption come from?
 
Chestermiller said:
Here again, your question (and the accompanying diagram) does not make sense to me. Where did this diagram and caption come from?
i am asking about , if no wall is present , how can it not eliminate stress?
 

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