Blog Name:	E Tech Tour
Url:	http://etechtour.com/
Language:	English
Topics:	electrical, mechanical, technical
Description:	Its a is a dimensionless number associated with buoyancy driven flow that is free convection or natural convection. When the Rayleigh number is below the critical value for a fluid, heat transfer is primarily in the form of conduction; when it exceeds the critical value, heat transfer is primarily in the form of convection.
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