Mechanical Engineering - Hydraulics and Fluid Mechanics - Discussion
Discussion Forum : Hydraulics and Fluid Mechanics - Section 8 (Q.No. 17)
17.
Froude's number is the ratio of inertia force to
Discussion:
2 comments Page 1 of 1.
Fakhre Alam said:
1 decade ago
The Froude's number, Fr, is a dimensionless value that describes different flow regimes of open channel flow.
The Froude's number is a ratio of inertial and gravitational forces.
Gravity (numerator) - Moves water downhill.
Inertia (denominator) - Reflects its willingness to do so.
Fr = v/(g l)1/2.
Where,
Fr = Froude's number.
v = Velocity.
g = Gravity.
l = Characteristic length.
When:
Fr = 1, critical flow,
Fr > 1, super critical flow (fast rapid flow),
Fr < 1, sub critical flow (slow / tranquil flow).
The Froude's number is a ratio of inertial and gravitational forces.
Gravity (numerator) - Moves water downhill.
Inertia (denominator) - Reflects its willingness to do so.
Fr = v/(g l)1/2.
Where,
Fr = Froude's number.
v = Velocity.
g = Gravity.
l = Characteristic length.
When:
Fr = 1, critical flow,
Fr > 1, super critical flow (fast rapid flow),
Fr < 1, sub critical flow (slow / tranquil flow).
(1)
Sid said:
7 years ago
Frauds no = Inertia force/gravitational force.
Match no = Inertia force/elastic force.
Raynaud's no = Inertia force/viscous force.
Webwer no = Inertia force/surface tension force.
Euler's no = Inertia force/pressure force.
Match no = Inertia force/elastic force.
Raynaud's no = Inertia force/viscous force.
Webwer no = Inertia force/surface tension force.
Euler's no = Inertia force/pressure force.
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