Why Does Water Flow from Low to High Energy Levels?

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SUMMARY

Water flows from low to high energy levels due to pressure differences, not solely based on energy calculations. In the given scenario, the energy at point A is higher, calculated using the equation (Pa + za + (Va)^2)/2g, yet water flows from point B to point A. This phenomenon is explained by the pressure values, which must support the flow, demonstrating that pressure gradients play a crucial role in fluid dynamics.

PREREQUISITES
  • Understanding of fluid dynamics principles
  • Familiarity with Bernoulli's equation
  • Knowledge of pressure differentials in fluid systems
  • Basic concepts of energy conservation in fluids
NEXT STEPS
  • Study Bernoulli's equation in detail
  • Explore the concept of pressure gradients in fluid mechanics
  • Learn about the role of pumps in fluid systems
  • Investigate real-world applications of fluid dynamics in engineering
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Students studying fluid dynamics, engineers working with hydraulic systems, and anyone interested in the principles of fluid flow and pressure management.

foo9008
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Homework Statement


As we all know , energy will lose from high to low. in the equation , the energy at A ( Pa +za +](Va)^2 ]/2g ) is higher , while the energy at B is lower. So, why the water flow from B to A ? why not A to B ?
20.39 +10.52-hf = 32.98

Homework Equations

The Attempt at a Solution

 

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foo9008 said:

Homework Statement


As we all know , energy will lose from high to low. in the equation , the energy at A ( Pa +za +](Va)^2 ]/2g ) is higher , while the energy at B is lower. So, why the water flow from B to A ? why not A to B ?
20.39 +10.52-hf = 32.98

Homework Equations

The Attempt at a Solution

You forgot the pressure differences.
 
foo9008 said:
As we all know , energy will lose from high to low. in the equation , the energy at A ( Pa +za +](Va)^2 ]/2g ) is higher , while the energy at B is lower. So, why the water flow from B to A ? why not A to B ?

chek the pressure values -it must be supporting the flow? that's how one pumps water to higher levels!
 
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