Turbulent Flow · Fluid Mechanics · GATE ME

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Marks 1

GATE ME 2016 Set 1
The instantaneous stream-wise velocity of a turbulent flow is given as follows: $$$u\left( {x,y,z,t} \right) = \overline u \left( {x,y,z} \right) + \m...
GATE ME 2014 Set 3
Consider the turbulent flow of a fluid through a circular pipe of diameter, $$D.$$ Identify the correct pair of statements. $${\rm I}.$$ The fluid is...
GATE ME 2013
For steady, fully developed flow inside a straight pipe of diameter $$D,$$ neglecting gravity effects, the pressure drop $$\Delta p$$ over a length $$...
GATE ME 2007
Consider steady laminar incompressible axi-symmetric fully developed viscous flow through a straight circular pipe of constant cross - sectional area ...
GATE ME 2007
Oil flows through a $$200mm$$ diameter horizontal cast iron pipe (friction factor, $$f=0.0225$$) of length $$500m.$$ The volumetric flow rate is $$0.2...
GATE ME 1994
Prandtl’s mixing length is turbulent flow signifies
GATE ME 1988
The parameters which determines the friction factor for turbulent flow in a rough pipe are:

Marks 2

GATE ME 2009
Water at $${25^0}C$$ is flowing through a $$1.0km$$ long $$G.I.$$ pipe of $$200mm$$ diameter at the rate of $$0.07$$ $${m^3}/s.$$ If value of Darcy fr...
GATE ME 2006
A siphon draws water from a reservoir and discharges it out at atmospheric pressure. Assuming ideal fluid and the reservoir is large, the velocity at ...
GATE ME 2003
A syringe with a frictionless plunger contains water and has at its end a $$100$$ $$mm$$ long needle of $$1$$ $$mm$$ diameter. The internal diameter o...
GATE ME 2003
A syringe with a frictionless plunger contains water and has at its end a $$100$$ $$mm$$ long needle of $$1$$ $$mm$$ diameter. The internal diameter o...
GATE ME 1998
The discharge velocity at the pipe exit in figure is ...
GATE ME 1994
Fluid is flowing with an average velocity of $$V$$ through a pipe of diameter $$d.$$ over a length of $$L,$$ the “head” loss is given by $${{fL{V^2}} ...
GATE ME 1993
Shown below are three tanks, tank $$1$$ without an orifice tube and tanks $$2$$ and $$3$$ with orifice tubes as shown. Neglecting losses and assuming ...
GATE ME 1987
In the case of turbulent flow of a fluid through a circular tube (as compared to the case of laminar flow at the same flow rate) the maximum velocity ...

Marks 5

GATE ME 1989
A $$400m$$ long horizontal pipe is to deliver $$900$$ kg of oil $$\left( {S = 0.9,\,\,\upsilon = 0.0002{m^2}/s} \right)$$ per minute. If the head lo...
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