EFFECTS OF ABSORPTION ON THE NONLINEAR-INTERACTION OF SOUND BEAMS

被引：7

作者：

DARVENNES, CM ^{[1
]}

HAMILTON, MF ^{[1
]}

TJOTTA, JN ^{[1
]}

TJOTTA, S ^{[1
]}

机构：

[1] UNIV TEXAS,APPL RES LABS,AUSTIN,TX 78713

来源：

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | 1991年 / 89卷 / 03期

关键词：

D O I：

10.1121/1.400645

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Nonlinearity in the propagation and interaction of sound beams. The amplitude and phase conditions of the sources are arbitrary, within the limits imposed by the parabolic approximation. A distinction is made between two main contributions to the nonlinearly generated sound in the far field, he continuously pumped sound and the scattered sound. The relative amplitudes of the pumped and scattered waves are shown to to depend critically on the frequency dependence of the absorption coefficients. Numerical results are presented for the noncollinear interaction of Gaussian primary beams, and also for second harmonic generation in the field of a circular uniform piston source.

引用

页码：1028 / 1036

页数：9

共 15 条

[11]

TJOTTA JN, 1990, J ACOUST SOC AM, V88, P2859, DOI 10.1121/1.399690

[12] EFFECTS OF BOUNDARY-CONDITIONS ON THE NONLINEAR-INTERACTION OF SOUND BEAMS [J].