What number is associated with natural convection?
Rayleigh number
Reynolds number
Mach number
Prandtl number
Answer
Rayleigh number is a dimensionless number that characterizes the flow regime of natural convection. It is defined as the ratio of buoyancy forces to viscous forces. A high Rayleigh number indicates that buoyancy forces are dominant, leading to turbulent natural convection, while a low Rayleigh number indicates that viscous forces are dominant, leading to laminar natural convection.
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