THE SPLIT-OPERATOR TECHNIQUE IN ACOUSTICAL PHYSICS

机译：声学物理学中的分裂算子技术

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We present a new finite-difference scheme to study the scattering of sound in the time-domain. The scheme is based on a clever application of the split-operator technique previously employed in quantum mechanics to solve the time-dependent Schroedinger equation. This scheme has advantages in comparison with the usual finite-difference time-domain algorithms. Its main characteristics are: it has a precision of the order (Δt) ; it can work with non-homogeneous space-discretizations; and it verifies the energy conservation law.

机译：我们提出了一种新的有限差分方案，以研究时域中的声音散射。该方案基于先前在量子力学中用于解决时间相关Schroedinger方程的分裂算子技术的巧妙应用。与通常的有限差分时域算法相比，该方案具有优势。它的主要特点是：精度为（t）阶。它可以处理非均匀的空间离散化；并验证了节能法。

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《IUTAM Symposium on Diffraction and Scattering in Fluid Mechanics and Elasticity Jul 16-20, 2000 Manchester, United Kingdom》|2000年|p.107-114|共8页
会议地点 Manchester(GB)
作者
D. Bosquetti; J. Sanchez-Dehesa;
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作者单位

Departamento de Fisica Teorica de la Materia Condensada Facultad de Ciencias (C-5), Universidad Autonoma de Madrid Madrid E-28049, Spain;

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原文格式 PDF
正文语种 eng
中图分类力学;
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THE SPLIT-OPERATOR TECHNIQUE IN ACOUSTICAL PHYSICS

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