Acoustic finite element calculations in the time domain

  • Jensen, Morten Skaarup (Project Manager)

    Project Details

    Description

    The purpose of this PhD-project has been to study the particular problems that occur when the finite element method is used in solving acoustic problems in the time domain. The most serious error in time domain calculations is a falsely predicted dispersion phenomenon. The origin and the implications of this error have been studied, which has led to a new method of determining the optimum size of the elements and the time step. This is an essential part of reducing the memory requirements and calculation time in time domain finite element calculations.
    The project was finished by the end of August 1996. The activities in 1996 have concentrated on studying various methods of reducing the computational costs.
    StatusFinished
    Effective start/end date01/08/199331/07/1996