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The velocity of flow in any pipe is determined by three things. The internal pipe diameter, the mass flow rate of the liquid and the fluid density.
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What happens to the pressure gauge reading if the flow velocity is increased?
From the Bernoulli equation, pressure drop increases with the square of velocity. So if the velocity is doubled the pressure drop will increase by a factor of four.
What is the formula for LPG gas flow in pipeline?
LPG contains propane (C3H8) and butane (C4H10)
Which pipe will be used for methanol?
oration of meathanol in a pipeline
What is critical flow and sub critical flow of fluids?
Critical flow is the special case where the froude number (dimensionless) is equal to 1. i.e. The velocity divided by the square root of (gravitational constant multiplied by the depth) =1. Sub critical flow i has a froude number less than 1, and is therefore characterised by slow moving deep water. Supercritical flow is defined as having a froude number greater than 1 and is therefore characterised by shallow fast moving flows.
What is flooding and channeling in context with distillation?
Flooding and channeling are very significant terms with both gas absorption and distillation of it involves the use of packed towers. Flooding means that the gas velocity is very high, therefore, does not allow the flow of the liquid from the top of the tower, and flooding occurs on the top of it (ergo, the gas phase is not completely mixed by the water phase). The best gas velocity, should be half of the flooding velocity. For channeling, it is the unequal wetting of the packings in the tower. If channeling occurs, poor mass transfer happens, and therefore, less efficiency of the tower happens.
What is the function of zero velocity valve in pipeline?
To reduce the velocity
Why velocity of flow will decrease with increase in peripheral speed of francis turbine?
the peripheral velocity of the turbine is the around velocity. the increase in the velocity of the peripheral will decrease the velocity of the flow towards the turbine
Differentiate between steady flow and pipe unsteady flow?
The velocity is constant in a steady flow pipe while in the unsteady flow the velocity is not constant.
What is the equation for fluid flow?
is the equation for flow velocity
Difference between turbulent flow and streamlined flow?
Streamline flow:The flow of a fluid is said to be streamline (also known as steady flow or laminar flow), if every particle of the fluid follows exactly the path of its preceding particle and has the same velocity as that of its preceding particle when crossing a fixed point of reference.Turbulent flow:The flow of a fluid is said to be turbulent or disorderly, if its velocity is greater than its critical velocity. Critical velocity of a fluid is that velocity up to which the fluid flow is streamlined and above which its flow becomes turbulent. When the velocity of a fluid exceeds the critical velocity, the paths and velocities of the fluid particles begin to change continuously and haphazardly. The flow loses all its orderliness and is called turbulent flow.
What is difference between flow rate and flow velocity in flow tubes?
velocity is the speed of the flow (for example, meters/sec.) Flow rate is the volume per unit time (example: liters/sec.)
What is critical velocity in fluid flow?
The flow of a liquid remains steady or orderly only so long as its velocity does not exceed a certain limiting value for it, called critical velocity.
How does a streams gradient affect of velocity?
The steeper the gradient, the higher the velocity of flow.
Limitations of work energy theorem?
it doesn't define direction of velocity
What is river velocity?
it is the speed of the flow in a river
Where the velocity of blood flow is the lowest?
capillaries!
Drift velocity in two-phase flow?
it is the relative velocity of two phase that is gas and liquid.
