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## Main Question or Discussion Point

Hi

Can anyone tell me anything about these numbers. I know the formulae I just want a qualitative description.

As far as I have it the Rayleigh number tells you if you can have convection and how vigorous that convection is, and the Nusselt number tells you how efficient that convection is in transporting heat.

I could well be wrong.....

Cheers

Can anyone tell me anything about these numbers. I know the formulae I just want a qualitative description.

As far as I have it the Rayleigh number tells you if you can have convection and how vigorous that convection is, and the Nusselt number tells you how efficient that convection is in transporting heat.

I could well be wrong.....

Cheers