Machine-translated by Google. Questions are authored in English.
Top

Discussion

The Reynolds number is formed from

  • A.density, velocity, a length and viscosity
  • B.viscosity, thermal conductivity and heat capacity
  • C.velocity, gravity and a length
  • D.pressure, density and velocity

Answer: A

It compares inertial with viscous forces and its four quantities combine to give a dimensionless ratio. The second grouping is the Prandtl number and the third relates to the Froude number. Its value decides whether flow is laminar or turbulent.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.