Which of the following statements best describes conditions in turbulent flow?

A.   Fluid particles move along a smooth, straight path.
B.   Energy loss varies directly with the square of the velocity.
C.   Energy loss varies directly with the velocity.
D.   Reynolds number is always less than 2,000.

1 Answer

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Ethan A Croyle

Updated on December 25th, 2020

f	=	friction factor (unitless)
L	=	length of pipe (ft)
D	=	diameter of pipe (ft)
v	=	fluid velocity (ft/sec)
g	=	gravitational acceleration (ft/sec2)

B, This is due to the head loss equation, but can also be varied with height changes and decreases in energy availability such as heat loss if considered.

H_f = f *{L \ D} *{v^2 \ (2 *g)}

Related Questions

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  A Newtonian fluid flows through 2-in. commercial steel pipe (I.D. = 0.0525 m). 

  Liquid Properties: 
  Density = 1.00 g/mL
  Viscosity = 1.05 cP 
  Flow= 0.500 `m^3//min`

  The Reynolds number is most nearly: 

  A.   $1.93\times {10}^3$
  B.   $7.94\times {10}^3$
  C.   $1.93\times {10}^5$
  D.   $1.15\times {10}^7$