Rayleigh number

Rayleigh number读音音标

英 [ˈreili ˈnʌmbə]

美 [ˈreli ˈnʌmbɚ]

Rayleigh number意思解释

释义

瑞利数；

英英释义

In fluid mechanics, the Rayleigh number (Ra) for a fluid is a dimensionless number associated with buoyancy driven flow (also known as free convection or natural convection). When the Rayleigh number is below the critical value for that 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.