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The open channel flow has a free surface whereas the pipe flow has a closed surface.

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An orifice and a notch are both openings used to measure fluid flow, but they differ in design and application. An orifice is a small hole or opening, typically circular, that allows fluid to flow through and is often used in pressure measurement. In contrast, a notch is a V-shaped or rectangular opening in a weir that allows fluid to flow over its edge, primarily used for measuring the flow rate of open channel flow. The flow characteristics and calculation methods for each are also distinct, with orifices focusing on pressure drops and notches on flow over a defined edge.


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Related Questions

Differentiate between open channel flow and pipe flow?

The open channel flow has a free or rather open surface whereas the pipe flow has a closed surface.


What is difference between the open channel and closed channel flow?

open cahannel flow and pipe flow Open channel is always at atmospheric pressure Pipe flow has pressure either above or below atm


What is the relation between alternate depths in rectangular open channels?

In rectangular open channels, alternate depths refer to two different water depths that the flow can take within the channel. These depths are symmetrically positioned about the channel bottom and are a result of the conservation of energy in the flow. The alternate depths occur when the flow transitions between supercritical and subcritical flow conditions within the channel.


What is a control section in open channel flow?

in open channel flow Control sections occur at entrances and exits to channels and at changes in channel slopes, under certain conditions. A gate in a channel can be a control for both the upstream and downstream reaches. In a the flow passes through critical at the entrance to a channel, and the depth can be computed there for a given discharge. The channel is steep; therefore, computations proceed downstream.


What is a wall or plate placed in an open channel to measure the flow of water called?

sonometer


Why critical section is a control section in open channel flow?

In open channel flow, the critical section is the point where the flow transitions between subcritical and supercritical states, which significantly affects hydraulic behavior. At this section, the flow velocity and depth reach a critical balance, allowing for the efficient movement of water while minimizing energy losses. The critical depth is essential for analyzing flow characteristics, such as flow rate and energy, and it serves as a control point for determining the behavior of the entire channel system. Understanding the critical section helps engineers design effective drainage systems and manage water resources efficiently.


What is area velocity method?

The area velocity method is a commonly used technique in open channel flow measurement. It involves measuring the velocity of flow at different points in the channel cross-section and integrating these velocities to determine the flow rate. By multiplying the flow rate by the cross-sectional area of the channel, the method can calculate the volume of fluid passing through the channel over time.


Differentiate between microsoft PowerPoint and open office?

Powerpoint is a single program - OpenOffice is a suite of programs !


What is the difference between internal and external flow?

About of Blood's flow:A fluid flow is classified as being internal or external, depending on whether the fluid is forced to flow in a confined channel or over a surface. The flow of an unbounded fluid over a surface such as a plate, a wire, or a pipe is external flow. The flow in a pipe or duct is internal flow if the fluid is completely bounded by solid surfaces. The flow of liquids in a duct is called open-channel flow if the duct is only partially filled with the liquid and there is an free surface, e.g. the flows of water in rivers and irrigation ditches.


Describe circular flow model of an open economy?

it is a flow of cash between businesses,fims


What is the hydraulic depth?

Hydraulic depth is a measure of the distance from the free surface to the channel bed in a fluid flow system. It is calculated as the cross-sectional area of flow divided by the top width of the flow. It is used in fluid mechanics to analyze the characteristics of open channel flow.


Where can I find the solution manual for Chaudhry M. Hanif's Open Channel Flow?

Sorry..there is no solution for that solution u are trying to fix.