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The drag force encountered by a fluid on a bodyimmersed in the fluid is due to
- a)Pressure and viscous force
- b)Pressure and gravity force
- c)Pressure and surface tension
- d)Viscous and gravity force.
Correct answer is option 'A'. Can you explain this answer?
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The drag force encountered by a fluid on a bodyimmersed in the fluid i...
Drag Force on a Body Immersed in a Fluid
The drag force encountered by a fluid on a body immersed in the fluid is primarily due to pressure and viscous forces acting on the body.
Pressure Force
- Pressure force is the force exerted by the fluid on the body due to the pressure difference between the front and back of the body.
- The pressure force acts perpendicular to the surface of the body and contributes to the overall drag force experienced by the body.
Viscous Force
- Viscous force is the force exerted by the fluid on the body due to the viscosity of the fluid.
- The viscosity of the fluid causes a resistance to the motion of the body, resulting in a viscous force acting opposite to the direction of motion.
- Viscous force contributes significantly to the drag force experienced by the body, especially at high Reynolds numbers.
Combined Effect
- The combined effect of pressure and viscous forces results in the drag force experienced by a body immersed in a fluid.
- The magnitude of the drag force depends on various factors such as the shape of the body, the velocity of the fluid, and the properties of the fluid itself.
In conclusion, the drag force encountered by a fluid on a body immersed in the fluid is primarily due to the combined effects of pressure and viscous forces. Understanding these forces is essential in the design and analysis of systems involving fluid flow and drag.
The drag force encountered by a fluid on a body immersed in the fluid is primarily due to pressure and viscous forces acting on the body.
Pressure Force
- Pressure force is the force exerted by the fluid on the body due to the pressure difference between the front and back of the body.
- The pressure force acts perpendicular to the surface of the body and contributes to the overall drag force experienced by the body.
Viscous Force
- Viscous force is the force exerted by the fluid on the body due to the viscosity of the fluid.
- The viscosity of the fluid causes a resistance to the motion of the body, resulting in a viscous force acting opposite to the direction of motion.
- Viscous force contributes significantly to the drag force experienced by the body, especially at high Reynolds numbers.
Combined Effect
- The combined effect of pressure and viscous forces results in the drag force experienced by a body immersed in a fluid.
- The magnitude of the drag force depends on various factors such as the shape of the body, the velocity of the fluid, and the properties of the fluid itself.
In conclusion, the drag force encountered by a fluid on a body immersed in the fluid is primarily due to the combined effects of pressure and viscous forces. Understanding these forces is essential in the design and analysis of systems involving fluid flow and drag.
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The drag force encountered by a fluid on a bodyimmersed in the fluid is due toa)Pressure and viscous forceb)Pressure and gravity forcec)Pressure and surface tensiond)Viscous and gravity force.Correct answer is option 'A'. Can you explain this answer?
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