A MAGNETOHYDRODYNAMIC UNDERWATER ACOUSTIC TRANSDUCER

被引：4

作者：

SCHREPPLER, SC

BUSCHVISHNIAC, IJ

机构：

[1] Applied Research Laboratories, The University of Texas, Austin

来源：

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | 1991年 / 89卷 / 02期

关键词：

D O I：

10.1121/1.1894655

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

The radiation characteristics of a magnetohydrodynamic (MHD) acoustic transmitter radiating into a free medium are examined. Two source mechanisms are associated with the transducer: an electromagnetic force associated with the MHD operation, and a density fluctuation associated with heating of the medium by an electrical current. The wave equation is derived and a solution is found for impedance boundary conditions using a Green's function approach. Measurements obtained in a large water tank are shown to compare favorably with the predictions.

引用

页码：927 / 938

页数：12

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