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Herbert Frank Percy Purday has written:

'Streamline flow' -- subject(s): Fluid mechanics, Viscosity

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Herbert Frank Percy Purday has written:

'Streamline flow' -- subject(s): Fluid mechanics, Viscosity

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Streamline: the flow in which velocity is always tangent to the path.

Pathline: the path followed by the fluid particle is called pathline.

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Venturi Meter is a device used for measuring the flow of the fluid.

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a fluid in which ita velocity at any point is constant or varies in a regular manner.

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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.

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