BUOYANCE SIMULATION INTERFACE

BUOYANCE SIMULATION INTERFACE

Lab Report for Course No. (MET2050)

 

Introduction

When different objected are subjected to masses of water or any other fluid, they tend to experience forces which appear to be pushing them upwards as other forces tend to pull them down the fluid. The manner in which the forces act on the objects is determined by a number of factors. Some of the factors include the shape of the body, the volume, the weight, the density of the body, the porosity of the body and the water displacement. Again the ability of the bodies to be acted upon by forces which tend to lift them upwards lead to their floating hence enabling them to stay on the water surfaces. However, the buoyancy of the bodies in the fluid will enable the fluid to exert some force on the body especially when placed on the fluid’s surface.

Due to the buoyancy of the bodies, some fluid will be displaced from the fluid’s vessel. In situations whereby the fluid is displaced by the mass of the object, the weight of the fluid displaced will be equal to the weight of the object on the fluid’s surface. However, the forces exerted by the fluid act on vertical direction to the object at the centroid. The buoyancy of the fluids can be effectively described by the Archimedes laws of floatation. On the other hand, the ability of the fluids to float is determined by the shape of the objects. For the sharp objects, the buoyancy experienced will be low hence it will not have an impact on the object.

Tabulations

Buoyant force=

=

Where  is the buoyant force,

is the specific weight of the fluid

Using the equation static equilibrium

=0 where  is the vertical force

w+ =0

For the weight of the body:

W=V whereby V is total volume of the object and

FT=ρVg−mg

FT=ρ ()g−mg

FT =(1.23kg/m^3)( π()3)g−(9.20 kg)g

FT​=180 N

Data processing and analysis

Run Dry Weight (N) Wet Weight (N) Buoyant Force (N)
1 1.737 1.635 0.102
2 1.692 1.596 0.096
3 1.623 1.570 0.053
4 1.617 1.563 0.054

 

On the other hand, the buoyant force can be obtained by subtracting the weight of the object when in the fluid from the weight of the object when not in the fluid. This is the simplest way of obtaining the buoyant force because the fluid will exert some force on the object thus making it appear light.

Summary and discussion

The buoyant force acting on different objects plays significant role in ensuring that water vessels float on the water surface thus facilitating the water transport. However, the forces ensure that the vessels do not sink in the water especially due to their wide shapes. Again, the force can be used by the aquatic animals when they want to come on the water surface for the sake of sun bathing or for them to breathe effectively.

 

 

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