SPH Simulation of Acoustic Waves: Effects of Frequency, Sound Pressure, and Particle Spacing
作者: Y. O. ZhangT. ZhangH. OuyangT. Y. Li
作者单位: 1School of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
2School of Engineering, University of Liverpool, The Quadrangle, L69 3GH Liverpool, UK
刊名: Mathematical Problems in Engineering, 2015, Vol.2015
来源数据库: Directory of Open Access Journals
DOI: 10.1155/2015/348314
原始语种摘要: 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...
全文获取路径: DOAJ  (合作)

  • discussion 讨论
  • error 误差
  • effects 海员自身物品
  • feasibility 可行性
  • standard 标准
  • range 射程
  • particle 颗粒
  • sound 海峡
  • rising 上升的
  • increase 增加