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Froude number is the ratio of
- a)inertia forces to viscous forces
- b)buoyancy forces to viscous forces
- c)buoyancy forces to inertia forces
- d)inertia forces to gravity forces
Correct answer is option 'D'. Can you explain this answer?
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Most Upvoted Answer
Froude number is the ratio ofa)inertia forces to viscous forcesb)buoya...
Explanation:
The Froude number (Fr) is a dimensionless number that represents the ratio of inertia forces to gravity forces in a fluid flow. It is named after William Froude, a British engineer and naval architect who first introduced the concept.
Definition:
The Froude number is defined as the ratio of the inertia forces to the gravity forces acting on a fluid flow.
Mathematical Formula:
The Froude number (Fr) is calculated using the following formula:
Fr = V / (g * L)
where:
Fr = Froude number
V = velocity of the fluid flow
g = acceleration due to gravity
L = characteristic length or depth of the fluid flow
Explanation of the Options:
a) Inertia forces to viscous forces: This option is incorrect because the Froude number does not involve viscous forces. It only considers inertia forces and gravity forces.
b) Buoyancy forces to viscous forces: This option is also incorrect because the Froude number does not involve buoyancy forces. It only considers inertia forces and gravity forces.
c) Buoyancy forces to inertia forces: This option is incorrect because the Froude number does not involve buoyancy forces. It only considers inertia forces and gravity forces.
d) Inertia forces to gravity forces: This option is correct. The Froude number is the ratio of inertia forces (represented by the velocity of the fluid flow) to gravity forces (represented by the acceleration due to gravity). It is used to determine the behavior of fluid flow, specifically in open channels, rivers, and ocean waves.
Significance of the Froude Number:
The Froude number is an important parameter in fluid mechanics as it helps in understanding the type of flow regime. It is used to classify flow as subcritical (Fr < 1),="" critical="" (fr="1)," or="" supercritical="" (fr="" /> 1).
In subcritical flow, the fluid flow is controlled by inertia forces and the flow velocity is less than the wave velocity. In critical flow, the fluid flow transitions between subcritical and supercritical conditions. In supercritical flow, the fluid flow is controlled by gravity forces and the flow velocity is greater than the wave velocity.
Understanding the Froude number is crucial for various engineering applications, such as designing open channels, determining the stability of ships, analyzing river flow, and predicting the behavior of ocean waves.
The Froude number (Fr) is a dimensionless number that represents the ratio of inertia forces to gravity forces in a fluid flow. It is named after William Froude, a British engineer and naval architect who first introduced the concept.
Definition:
The Froude number is defined as the ratio of the inertia forces to the gravity forces acting on a fluid flow.
Mathematical Formula:
The Froude number (Fr) is calculated using the following formula:
Fr = V / (g * L)
where:
Fr = Froude number
V = velocity of the fluid flow
g = acceleration due to gravity
L = characteristic length or depth of the fluid flow
Explanation of the Options:
a) Inertia forces to viscous forces: This option is incorrect because the Froude number does not involve viscous forces. It only considers inertia forces and gravity forces.
b) Buoyancy forces to viscous forces: This option is also incorrect because the Froude number does not involve buoyancy forces. It only considers inertia forces and gravity forces.
c) Buoyancy forces to inertia forces: This option is incorrect because the Froude number does not involve buoyancy forces. It only considers inertia forces and gravity forces.
d) Inertia forces to gravity forces: This option is correct. The Froude number is the ratio of inertia forces (represented by the velocity of the fluid flow) to gravity forces (represented by the acceleration due to gravity). It is used to determine the behavior of fluid flow, specifically in open channels, rivers, and ocean waves.
Significance of the Froude Number:
The Froude number is an important parameter in fluid mechanics as it helps in understanding the type of flow regime. It is used to classify flow as subcritical (Fr < 1),="" critical="" (fr="1)," or="" supercritical="" (fr="" /> 1).
In subcritical flow, the fluid flow is controlled by inertia forces and the flow velocity is less than the wave velocity. In critical flow, the fluid flow transitions between subcritical and supercritical conditions. In supercritical flow, the fluid flow is controlled by gravity forces and the flow velocity is greater than the wave velocity.
Understanding the Froude number is crucial for various engineering applications, such as designing open channels, determining the stability of ships, analyzing river flow, and predicting the behavior of ocean waves.
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Froude number is the ratio ofa)inertia forces to viscous forcesb)buoyancy forces to viscous forcesc)buoyancy forces to inertia forcesd)inertia forces to gravity forcesCorrect answer is option 'D'. Can you explain this answer?
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Froude number is the ratio ofa)inertia forces to viscous forcesb)buoyancy forces to viscous forcesc)buoyancy forces to inertia forcesd)inertia forces to gravity forcesCorrect answer is option 'D'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Froude number is the ratio ofa)inertia forces to viscous forcesb)buoyancy forces to viscous forcesc)buoyancy forces to inertia forcesd)inertia forces to gravity forcesCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Froude number is the ratio ofa)inertia forces to viscous forcesb)buoyancy forces to viscous forcesc)buoyancy forces to inertia forcesd)inertia forces to gravity forcesCorrect answer is option 'D'. Can you explain this answer?.
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