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Mechanical Engineering · Q122

Heat And Mass Transfer

Engineering and GATE · Mechanical Engineering · question 122

Q122

Reynolds number is the ratio of

A.
Energy transferred by convection to that by conduction
B.
Kinematic viscosity to thermal diffusivity
C.
Inertia force to viscous force
Answer
D.
None of the above

Answer: Option C

Solution

Answer: Option C
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.