What property of a fluid determinates rising and sinking Velocities

In summary, the velocity at which fluid B rises in fluid A is determined by a combination of factors, including density, viscosity, and other parameters such as Atwood number, Rayleigh number, and Grashof number. In the case of viscosity, elasticity would not replace it for a solid object, but it may vary depending on the viscosity of fluid A.
  • #1
Gabriel Ulisses
5
0
If we have a bottle with a fluid A of X density, and in the bottom of this bottle it magically spawns the same amount of fluid B with X/2 density, fluid B should rise in fluid A until they both change positions and fluid B floats in A.
Wich property of the fluids are the ones that determinates the velocity fluid B rises in A.
Is it based on the density? As in: A fluid with double the density would sink with double velocity.
Is it the viscosity of both fluids?
Buoyancy?
In the case of viscosity, if B were to be a solid object would elasticity replace viscosity? or it would only varry with the viscosity of A?

Thanks
 
Physics news on Phys.org
  • #2
Both density and viscosity play roles.
 
  • #3
Other important parameters here would be the Atwood number, Rayleigh number, and Grashof number.
 

1. What is fluid velocity?

Fluid velocity is the measure of the speed at which a fluid is moving. It is typically measured in meters per second (m/s) or feet per second (ft/s).

2. How does the density of a fluid affect its velocity?

The density of a fluid is one of the main factors that determines its velocity. A denser fluid will have a higher velocity than a less dense fluid, as it will exert more force on objects and move faster.

3. What role does viscosity play in fluid velocity?

Viscosity, or the internal friction of a fluid, also plays a significant role in determining its velocity. A more viscous fluid will have a lower velocity, as the molecules are more tightly packed and resist movement.

4. Can the shape of an object affect the velocity of a fluid?

Yes, the shape of an object can greatly affect the velocity of a fluid. For example, a streamlined object will experience less resistance and have a higher velocity compared to a more blunt object.

5. How does fluid pressure impact its velocity?

Fluid pressure is another important factor in determining fluid velocity. As fluid moves, pressure is exerted on the surrounding objects. This pressure can affect the velocity of the fluid, as well as the objects within it.

Similar threads

Double experiment: "Falling ball viscometry" and viscous flow in an horizontal pipe
    • Engineering and Comp Sci Homework Help
Replies
31
Views
1K
Solving the Mystery of the Ball & Beakers: Determining the Layers of Fluids
    • Introductory Physics Homework Help
Replies
7
Views
1K
Classical I need some self-contained introductory books on Fluid Mechanics
    • Science and Math Textbooks
Replies
19
Views
3K
Buoyant Force Definition & Explanation - Archimedes' Principle
    • Other Physics Topics
Replies
1
Views
4K
Dimensional Analysis:Relating Particle Diam, Viscosity, & Weight
    • Engineering and Comp Sci Homework Help
Replies
2
Views
2K
Fluid Flow Loss Analysis Using Real Gas Properties
    • Mechanical Engineering
Replies
1
Views
1K
Power required to rotate a disc in a fluid
    • Introductory Physics Homework Help
Replies
2
Views
2K
Applicability of potential flow theory (fluid dynamics)
    • Mechanics
Replies
3
Views
2K
Sanity check on falling steel ball in water
    • Introductory Physics Homework Help
Replies
5
Views
1K
I Fragmentation of a drop in a miscible fluid
    • Classical Physics
Replies
2
Views
722

Hot Threads

Recent Insights

Back
Top