A fluid of viscosity `8 `poise and specific gravity `1.2` is flowing through a circular pipe of diameter ` 100 `mm. The maximum shear stress at the pipe wall is `210 N/m^2`. Find:

1.  The pressure gradient,
2.  The average velocity, and
3. Reynolds number of flow.

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 An oil of viscosity 9 poise and specific gravity 0.9 is flowing through a horizontal pipe of 60 mm diameter. If th…

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In a pipe of 300 mm diameter, the maximum velocity of flow is found to be 2 m/s. If the flow is laminar,find:the average…

A liquid with a specific gravity `2.8` and a viscosity `0.8` poise flows through a smooth pipe of unknown diameter, resu…