Identify the incorrect statement regarding Reynold's number R e :

Identify the incorrect statement regarding Reynold's number Re:
  1. for Re<1000, flow is laminar
  2. for 1000<Re<2000, flow is steady
  3. for Re>2000, flow is turbulent
  4. Re is a dimensionless number

Solution

The Reynolds number is the ratio of inertial forces to viscous forces within a fluid which is subjected to relative internal movement due to different fluid velocities. A region where these forces change behaviour is known as a boundary layer, such as the bounding surface in the interior of a pipe.

Asked in: AP EAMCET 2021 (19 Aug Shift 2)

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