Cazau, Dorian Bonnel, Julien Baumgartner, Mark

This paper investigates the use of an acoustic glider to perform acoustical meteorology. This discipline consists of analyzing ocean ambient noise to infer above-surface meteorological conditions. The paper focuses on wind speed estimation, in a near-shore marine environment. In such a shallow water context, the ambient noise field is complex, with...

Cazau, Dorian Bonnel, Julien Baumgartner, Mark

This paper investigates the use of an acoustic glider to perform acoustical meteorology. This discipline consists of analyzing ocean ambient noise to infer above-surface meteorological conditions. The paper focuses on wind speed estimation, in a near-shore marine environment. In such a shallow water context, the ambient noise field is complex, with...

Chaillat, Stéphanie

The main advantage of the BEM is that only the domain boundaries (and possibly interfaces) are discretized leading to a drastic reduction of the total number of degrees of freedom. In traditional BE implementation the dimensional advantage with respect to domain discretization methods is offset by the fully-populated nature of the BEM matrix, with ...

Chaillat, Stéphanie

The main advantage of the BEM is that only the domain boundaries (and possibly interfaces) are discretized leading to a drastic reduction of the total number of degrees of freedom. In traditional BE implementation the dimensional advantage with respect to domain discretization methods is offset by the fully-populated nature of the BEM matrix, with ...

Chaillat, Stéphanie

The main advantage of the BEM is that only the domain boundaries (and possibly interfaces) are discretized leading to a drastic reduction of the total number of degrees of freedom. In traditional BE implementation the dimensional advantage with respect to domain discretization methods is offset by the fully-populated nature of the BEM matrix, with ...

Cavalieri, André Jordan, Peter Lesshafft, Lutz

Organized structures in turbulent jets can be modeled as wavepackets. These are characterized by spatial amplification and decay, both of which are related to stability mechanisms, and they are coherent over several jet diameters, thereby constituting a noncompact acoustic source that produces a distinctive directivity in the acoustic field. In thi...

Cavalieri, André Jordan, Peter Lesshafft, Lutz

Organized structures in turbulent jets can be modeled as wavepackets. These are characterized by spatial amplification and decay, both of which are related to stability mechanisms, and they are coherent over several jet diameters, thereby constituting a noncompact acoustic source that produces a distinctive directivity in the acoustic field. In thi...

Chabassier, Juliette Tournemenne, Robin

The transfer matrix method allows to compute the input impedance of a pipe. This work proposes a unified formulation of the coefficients of the transfer matrices for cones and cylinders. This is done for both models with and without viscothermal losses. The exactlysolved equation with the transfer matrix method in the case of the cone with viscothe...

Chabassier, Juliette Tournemenne, Robin

The transfer matrix method allows to compute the input impedance of a pipe. This work proposes a unified formulation of the coefficients of the transfer matrices for cones and cylinders. This is done for both models with and without viscothermal losses. The exactlysolved equation with the transfer matrix method in the case of the cone with viscothe...

Chabassier, Juliette Tournemenne, Robin

The transfer matrix method allows to compute the input impedance of a pipe. This work proposes a unified formulation of the coefficients of the transfer matrices for cones and cylinders. This is done for both models with and without viscothermal losses. The exactlysolved equation with the transfer matrix method in the case of the cone with viscothe...