Wave propagation analysis in spiral geometries

被引：0

作者：

Pouraghdam, Rasoul Morteza ^{[1
]}

Bhat, Rama B. ^{[1
]}

机构：

[1] Concordia Univ, Dept Mech & Ind Engn, Montreal, PQ H3G 1M8, Canada

来源：

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | 2016年 / 140卷 / 04期

关键词：

Circular cross-sections - Cylindrical coordinates - Finite difference scheme - Harmonic resonance - Propagation analysis - Spiral geometries - Theoretical solutions;

D O I：

10.1121/1.4964372

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

In this paper wave propagation in strings of exponential and conical spiral geometries and in an exponential spiral horn of increasing circular cross-section area is studied. The three-dimensional wave equation in cylindrical coordinates is investigated, as the theoretical solution in the exponential spiral horn is derived and in the case of the strings, numerical simulation mainly using a centered in time and space finite difference scheme is carried out. The results suggest non-harmonic resonance modes in both of the conical and exponential spiral strings. (C) 2016 Acoustical Society of America

引用

页码：EL291 / EL295

页数：5