Perfectly Matched Layer for an Elastic Parabolic Equation Model in Ocean Acoustics-中国期刊网

摘要 Theperfectlymatchedlayer(PML)isaneffectivetechniquefortruncatingunboundeddomainswithminimalspuriousreflections.Afluidparabolicequation(PE)modelapplyingPMLtechniquewaspreviouslyusedtoanalyzethesoundpropagationprobleminarange-dependentwaveguide(LuandZhu,2007).However,LuandZhuonlyconsideredastandardfluidPEtodemonstratethecapabilityofthePMLanddidnottakeimprovedone-waymodelsintoconsideration.Theyapplieda[1/1]Padéapproximanttotheparabolicequation.Thehigher-orderPEsaremoreaccuratethanstandardoneswhenaverylargeanglepropagationisconsidered.Asforrange-dependentproblems,thetechniquestohandletheverticalinterfacebetweenadjacentregionsaremainlyenergyconservingandsingle-scattering.Inthispaper,thePMLtechniqueisgeneralizedtothehigherorderelasticPE,asistothehigherorderfluidPE.Thecorrectionofenergyconservingisusedinrange-dependentwaveguides.Simulationismadeinbothacousticcasesandseismo-acousticcases.Range-independentandrange-dependentwaveguidesarebothadoptedtotesttheaccuracyandefficiencyofthismethod.ThenumericalresultsillustratethataPMLismuchmoreeffectivethananartificialabsorbinglayer(ABL)bothinacousticandseismo-acousticsoundpropagationmodeling.

1杨波;钱永甫. A TWO-LAYER PRIMITIVE EQUATION OCEAN CURRENT MODEL AND ITS SIMULATION.大气科学及气象学,1997-01.
2Song Ruolong Ma Jun Wang Kexie. The Application of the Nonsplitting Perfectly Matched Layer in Numerical Modeling of Wave Propagation in Poroelastic Media.地球物理学,2005-04.
3Zhiming Chen Xinming Wu. An Adaptive Uniaxial Perfectly Matched Layer Method for Time-Harmonic Scattering Problems.基础数学,2008-02.
4Bai Bing;Niu Zhongqi;Niu Yi;Wei Bing;Zhao Gang. Fast division-free parallel structure for convolution perfectly matched layer in finite difference time domain method.通信与信息系统,2015-01.
5Wang Hua;Tao Guo;Shang Xue-Feng;Fang Xin-Ding;Daniel R Burns. Stability of finite difference numerical simulations of acoustic logging-while-drilling with different perfectly matched layer schemes.地球物理学,2013-04.
6季仲贞;郑朝洲;季素贞. ON THE MULTIPLE SOLUTIONS TO A THREE-COEFFICIENT SPECTRAL MODEL OF WIND-DRIVING OCEAN CURRENT EQUATION.力学,1991-03.
7LI Jianlong PAN Xiang. A Bayesian approach to matched field processing in uncertain ocean environments.声学,2008-04.
8王一夫;尹景学. SEMIGROUP APPROACH TO A DOUBLY DEGENERATE PARABOLIC EQUATION.基础数学,1999-02.
9YANGJINSHUN. ON THE CAUCHY PROBLEM OF NONLINEAR DEGENERATE PARABOLIC EQUATION.基础数学,1995-02.
10Deyue Zhang;Fuming Ma. A FINITE ELEMENT METHOD WITH PERFECTLY MATCHED ABSORBING LAYERS FOR THE WAVE SCATTERING BY A PERIODIC CHIRAL STRUCTURE.计算数学,2007-04.

Perfectly Matched Layer for an Elastic Parabolic Equation Model in Ocean Acoustics

来源期刊

相关推荐

同分类资源更多

相关关键词

Perfectly Matched Layer for an Elastic Parabolic Equation Model in Ocean Acoustics

来源期刊

相关推荐

同分类资源 更多

相关关键词

同分类资源更多