# heat transfer by convectionの例文

*Heat transfer by convection* is driven by the movement of fluids over the surface of the body.- to improve
*heat transfer by convection* and radiation, gases must move in the working space of the furnace as close to the surface of the heated subjects with the greatest possible speed; - The Rayleigh number can be understood as the ratio between the rate of
*heat transfer by convection* to the rate of heat transfer by conduction; or, equivalently, the ratio between the corresponding timescales ( i . e . conduction timescale divided by convection timescale ), up to a numerical factor.