A numerical analytic method for electromagnetic radiation accompanying with fracture of rocks  

A numerical analytic method for electromagnetic radiation accompanying with fracture of rocks

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作  者:陈震 黄卡玛 

机构地区:[1]Institute of Applied Electromagnetics, Sichuan University

出  处:《Chinese Physics B》2010年第10期333-338,共6页中国物理B(英文版)

基  金:Project supported by the National Natural Science Foundation of China (Grant No. 60531010)

摘  要:This paper studies Rabinovitch's compression experiments on granite and chalk and proposes a.n oscillating dipole model to analyse and simulate the electromagnetic radiation phenomenon caused by fracture of rocks. Our model assumes that the electromagnetic radiation pulses are initiated by vibrations of the charged rock grains on the tips of the crack. The vibrations of the rock grains are stimulated by the pulses of the cracks. Our simulations show comparable results with Rabinovitch's compression experiments. From the simulation results, it verifies an assumption that the crack width is inversely proportional to the circular frequency electromagnetic radiation, which is presented by Rabinovitch et al. The simulation results also imply that, by using our oscillating dipole model together with Rabinovitch's two equations about the crack length and crack width, we can quantitatively analyse and simulate the electromagnetic radiation phenomenon, which is induced from the fracture of the rocks.This paper studies Rabinovitch's compression experiments on granite and chalk and proposes a.n oscillating dipole model to analyse and simulate the electromagnetic radiation phenomenon caused by fracture of rocks. Our model assumes that the electromagnetic radiation pulses are initiated by vibrations of the charged rock grains on the tips of the crack. The vibrations of the rock grains are stimulated by the pulses of the cracks. Our simulations show comparable results with Rabinovitch's compression experiments. From the simulation results, it verifies an assumption that the crack width is inversely proportional to the circular frequency electromagnetic radiation, which is presented by Rabinovitch et al. The simulation results also imply that, by using our oscillating dipole model together with Rabinovitch's two equations about the crack length and crack width, we can quantitatively analyse and simulate the electromagnetic radiation phenomenon, which is induced from the fracture of the rocks.

关 键 词:oscillating dipoles electromagnetic radiation model fracture of rocks 

分 类 号:P589[天文地球—岩石学]

 

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