Share this entry
Rayleigh number Syllabification: Ray·leigh num·ber

Definition of Rayleigh number in English:


A dimensionless parameter that is a measure of the instability of a layer of fluid due to differences of temperature and density at the top and bottom.
Example sentences
  • By the mid-twentieth century, geophysicists had determined that the Earth's mantle was likely to advect heat from the core, because its Rayleigh number far exceeds the convective threshold.
  • Further, Honda et al. assume constant viscosity, which is an important element of the Rayleigh number.
Definition of Rayleigh number in:
Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Subscribe to remove ads and access premium resources