The velocity profile for viscous and non-viscous fluids

In summary, the velocity profile for viscous fluids is parabolic and decreases towards the walls, while the velocity profile for non-viscous fluids is constant throughout. Viscosity affects the profile by creating friction in viscous fluids, while in non-viscous fluids there is no friction. The velocity profile can change over time, especially in non-viscous fluids due to external factors. Factors that can affect the shape of the profile include viscosity, density, flow rate, and the container or channel geometry. In real-world applications, the velocity profile is important in fields such as fluid mechanics, aerodynamics, and biomedical engineering to understand and predict fluid behavior in different systems.
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Amr719
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I want to know if the velocity profile is uniform for viscous fluids or not ?
 
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In what case? There isn't enough information here to answer.
 
  • #3
For flow in a tube, the velocity profile is not flat.

Chet
 
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1. What is the difference between the velocity profile for viscous and non-viscous fluids?

The velocity profile for viscous fluids is parabolic, meaning that the velocity is highest at the center of the fluid and decreases towards the walls. In contrast, the velocity profile for non-viscous fluids is constant throughout the fluid, with no change in velocity from the center to the walls.

2. How does viscosity affect the velocity profile of a fluid?

Viscosity is a measure of a fluid's resistance to flow. In viscous fluids, the molecules stick together and create friction, causing the parabolic velocity profile. In non-viscous fluids, there is no friction, resulting in a constant velocity profile.

3. Can the velocity profile change over time?

Yes, the velocity profile of a fluid can change over time. This is especially true for non-viscous fluids, where the velocity profile can change due to external factors such as changes in pressure or flow rate.

4. What factors can affect the shape of the velocity profile?

The shape of the velocity profile can be affected by factors such as the fluid's viscosity, density, flow rate, and the geometry of the container or channel in which the fluid is flowing.

5. How is the velocity profile for viscous and non-viscous fluids used in real-world applications?

The velocity profile for viscous and non-viscous fluids is important in various fields such as fluid mechanics, aerodynamics, and biomedical engineering. It is used to understand and predict the behavior of fluids in different systems, such as in pipes, pumps, and blood vessels.

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