SPH simulation of acoustic waves: effects of frequency, sound pressure, and particle spacing
type: Item
instance of: scholarly article
title: SPH simulation of acoustic waves: effects of frequency, sound pressure, and particle spacing
zbMATH Open document ID: 1394.76105
DOI: 10.1155/2015/348314
author: Tao Zhang
author: Yong Ou Zhang
author: Huajiang Ouyang
author: Tianyun Li
published in: Mathematical Problems in Engineering
publication date: 2018-08-27T00:00:00Z
review text: Summary: Acoustic problems consisting of multiphase systems or with deformable boundaries are difficult to describe using mesh-based methods, while the meshfree, Lagrangian smoothed particle hydrodynamics (SPH) method can handle such complicated problems. In this paper, after solving linearized acoustic equations with the standard SPH theory, the feasibility of the SPH method in simulating sound propagation in the time domain is validated. The effects of sound frequency, maximum sound pressure amplitude, and particle spacing on numerical error and time cost are then subsequently discussed based on the sound propagation simulation. The discussion based on a limited range of frequency and sound pressure demonstrates that the rising of sound frequency increases simulation error, and the increase is nonlinear, whereas the rising sound pressure has limited effects on the error. In addition, decreasing the particle spacing reduces the numerical error, while simultaneously increasing the CPU time. The trend of both changes is close to linear on a logarithmic scale.
Mathematics Subject Classification ID: 76M28
zbMATH DE Number: 6926109
MaRDI profile type: Publication
full work available at URL: https://doi.org/10.1155/2015/348314
OpenAlex ID: W1951496063
Wikidata QID: Q59118098
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description: scientific article; zbMATH DE number 6926109