Acoustical wave propagator

被引：13

作者：

Pan, J ^{[1
]}

Wang, JB

机构：

[1] Univ Western Australia, Dept Mech & Mat Engn, Nedlands, WA 6907, Australia

[2] Univ Western Australia, Dept Phys, Nedlands, WA 6907, Australia

来源：

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | 2000年 / 108卷 / 02期

关键词：

D O I：

10.1121/1.429577

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

In this paper, an explicit acoustical wave propagator (AWP) is introduced to described the rime-domain evolution of acoustical waves. To implement its operation on an initial state of wave motion, the acoustical wave propagator is approximated as a Chebyshev polynomial expansion, which converges to machine accuracy. The spatial gradient in each polynomial term is evaluated by a Fourier transformation scheme. Analysis and numerical examples demonstrated that this Chebyshev-Fourier scheme is highly accurate and computational effective in predicting time-domain acoustical wave propagation and scattering. (C) 2000 Acoustical Society of America. [S0001-4966(00)04607-5].

引用

页码：481 / 487

页数：7

共 18 条

[1]

ASKER A, 1978, J CHEM PHYS, V68, P2794

[2] Space-time mixed finite elements for rods [J].

Atilgan, AR ;

Hodges, DH ;

Ozbek, MA ;

Zhou, W .

JOURNAL OF SOUND AND VIBRATION, 1996, 192 (03) :731-739

[3] Time-dependent quantum mechanical approach to reactive scattering and related processes [J].

Balakrishnan, N ;

Kalyanaraman, C ;

Sathyamurthy, N .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1997, 280 (02) :79-144

[4] Finite-difference time-domain simulation of low-frequency room acoustic problems [J].

Botteldooren, D .

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 1995, 98 (06) :3302-3308

[5]

COYETTE JP, 1994, P ISMA 19 LEUVEN, P223

[6] SOLUTION OF THE SCHRODINGER-EQUATION BY A SPECTRAL METHOD [J].

FEIT, MD ;

FLECK, JA ;

STEIGER, A .

JOURNAL OF COMPUTATIONAL PHYSICS, 1982, 47 (03) :412-433

[7]

FUNG KY, 1997, P 5 INT C SOUND VIBR, P1839

[8]

Gottlieb D., 1977, NUMERICAL ANAL SPECT

[9] Low-dissipation and low-dispersion Runge-Kutta schemes for computational acoustics [J].

Hu, FQ ;

Hussaini, MY ;

Manthey, JL .

JOURNAL OF COMPUTATIONAL PHYSICS, 1996, 124 (01) :177-191

[10]

JAMES ML, 1995, APPL NUMERICAL METHO

← 1 2 →