Is it possible that real fluid flow from low pressure to high pressure?
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no it is not possible,because fluid only flows from high pressure to low pressure.
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⇔ Yes, it's definitely possible for real fluids to flow from low pressure to high pressure.
⇔ The claim that particles of a fluid always flow from high pressure to low pressure is only true as long as the velocities of the particles are low.
⇔ If you have high velocity (such as in the middle of a venturi), that momentum can drive particles from lower pressure to higher pressure.
⇔ Example: Flow from low to high pressure happens every time you turn on a pump or compressor.
⇔ Thus, if a fluid is moving fast, then it can flow from low to high pressure, (against the pressure) because speed is equivalent to pressure.
⇔ It is called dynamic pressure pd=.5 ρ v^2, where ρ is density and v is velocity.
⇔ A few illustrations of such conditions have been added for further reference.
:)
⇔ The claim that particles of a fluid always flow from high pressure to low pressure is only true as long as the velocities of the particles are low.
⇔ If you have high velocity (such as in the middle of a venturi), that momentum can drive particles from lower pressure to higher pressure.
⇔ Example: Flow from low to high pressure happens every time you turn on a pump or compressor.
⇔ Thus, if a fluid is moving fast, then it can flow from low to high pressure, (against the pressure) because speed is equivalent to pressure.
⇔ It is called dynamic pressure pd=.5 ρ v^2, where ρ is density and v is velocity.
⇔ A few illustrations of such conditions have been added for further reference.
:)
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