Implicit Chebyshevspectralelementmethodforacousticswaveequations
发布时间：2025-04-30
点击次数：
- 发布时间：
- 2025-04-30
- 论文名称：
- Implicit Chebyshevspectralelementmethodforacousticswaveequations
- 发表刊物：
- Finite ElementsinAnalysisandDesign
- 摘要：
- In thepresentstudy,theChebyshevspectralelementmethodcoupledwiththeimplicitNewmarktime
integralmethodisinvestigatedtosimulateacousticfield.Theapproachisfirstappliedtoanumerical
example.Inthiscase,thenumericalresultisconsistentwiththereferencesolution,andtheinfluenceof
time stepandNewmarkfactoronnumericalaccuracyisstudied.Theresultingfiguresindicatethatthe
smallerthetimestepandNewmarkfactorare,thehigherthenumericalaccuracywillbe.Thedivision
patternofcomputationaldomaincanaffectthenumericalaccuracy,whichindicatesthatthenumerical
accuracy canbeimprovedwhenthegridnodestendtobedistributeduniformlyinthecomputational
domain.Secondly,anumericalexampleisusedtoinvestigatetheabsorbingboundarycondition,the
result ofwhichindicatesthattheabsorbingboundaryconditionabsorbsthenumericalreflection
whereastheDirichletboundaryconditioncausesthenumericalreflection.Moreover,theapproachis
also employedforwaveequationwithsourcetermssuchasmonopole,dipoleandquadrapole,whose
numericalresultskeeptheirradiationtraitsintactly.
- 合写作者：
- Changyun Zhu, GuoliangQin,JiazhongZhang
- 卷号：
- 47(2)
- 页面范围：
- 184–194
- 是否译文：
- 否
- 发表时间：
- 2011-01-26