The influence of the mass matrix on the dispersive nature of the semi-discrete, second-order wave equation
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Publication:1971289
DOI10.1016/S0045-7825(98)00266-7zbMath0964.76038OpenAlexW2050542076MaRDI QIDQ1971289
Publication date: 16 July 2001
Published in: Computer Methods in Applied Mechanics and Engineering (Search for Journal in Brave)
Full work available at URL: https://doi.org/10.1016/s0045-7825(98)00266-7
wave numbersecond-order wave equationphase errorsdispersive errorsgroup errorsmesh aspect ratiopenta-diagonal mass matrixrow-sum lumping mass matrixtwo-dimensional bilinear finite elementwave propagation direction
Hydro- and aero-acoustics (76Q05) Finite element methods applied to problems in fluid mechanics (76M10)
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