# Difference between revisions of "Dictionary:Rayleigh-Willis relation"

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{{#category_index:R|Rayleigh-Willis relation}} | {{#category_index:R|Rayleigh-Willis relation}} | ||

− | The oscillation period | + | The oscillation period <math>T</math> (in seconds) for the bubble effect varies as the cube root of the energy <math>E</math> and inversely as the <math>5/6th</math> power of the pressure.[[File:Segr5.jpg|right|thumb|400px|<b>Rayleigh-Willis relation</b> for representative energy sources. Source depth=9 m. (Courtesy Bendix United Geophysical.)]] |

− | + | The relation is | |

+ | <center><math>T=0.450E^{\frac{1}{3}}/(D+33)^{\frac{5}{6}}\quad or</math></center> | ||

− | <center> | + | <center><math>T=0.108E^{\frac{1}{3}}/(D'+10)^{\frac{5}{6}},</math></center> |

− | + | where <math>E</math> is the energy in joules, <math>D</math> is the depth in feet, and <math>D'</math> is the depth in meters. | |

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− | where | ||

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