In fluid mechanics, the Rayleigh number (Ra, after Lord Rayleigh) for a fluid is a dimensionless number associated with buoyancy-driven flow, also known...

phenomena such as Rayleigh–Bénard convection when v depends on temperature in the heat transfer formulation and reaction–diffusion pattern formation when...

Reaction–diffusion systems are mathematical models that correspond to several physical phenomena. The most common is the change in space and time of the...

Forced Rayleigh scattering (FRS) is an experimental method in physics and chemistry based on light scattering and is usually used to measure diffusion on...

in combination with a software-defined radio or RF spectrum analyzer. Rayleigh scattering, too, can be considered to be due to fluctuations in the density...

space measurement with forward modeling Photon diffusion Powder diffraction Raman scattering Rayleigh scattering Resonances in scattering from potentials...

weakly. This is in contrast to Rayleigh scattering for small particles and Rayleigh–Gans–Debye scattering (after Lord Rayleigh, Richard Gans and Peter Debye)...

driven by two different density gradients, which have different rates of diffusion. Convection in fluids is driven by density variations within them under...

place in most solids because neither bulk current flows nor significant diffusion of matter can take place. Granular convection is a similar phenomenon...

Orr–Sommerfeld equation Porous medium equation Potential flow Rayleigh–Bénard convection Rayleigh–Plesset equation Reynolds-averaged Navier–Stokes (RANS) equations...