Dictionary:Rayleigh-Willis relation

The oscillation period T (in seconds) for the bubble effect varies as the cube root of the energy E and inversely as the 5/6th power of the pressure. The relation is

T=0.450 E^1/3/(D+33)^5/6 or

T=0.108 E^1/3/(D′+10)^5/6,

where E is the energy in joules, D is the depth in feet, and D′ is the depth in meters. See Figure R-5.