What is the Rayleigh number associated with?
Natural convection
Heat transfer
Fluid viscosity
Thermal expansion
Answer
Natural convection is the movement of fluids due to density differences caused by temperature variations. The Rayleigh number is a dimensionless number that characterizes the relative importance of buoyancy forces to viscous forces in a fluid. A higher Rayleigh number indicates stronger buoyancy forces and a greater tendency for natural convection to occur.
John Strutt, 3rd Baron Rayleigh Brain Challenge: 31 Questions to Push Your Limits
Related Quizzes
Subscribe Now!
Learn something
new everyday
Playing quizzes is free! We send 1 quiz every week to your inbox