title: Impulse scattering from clouds of acoustically coupled gas bubbles in fluids.
abstract: To calculate the impulse response of a bubble cloud in a compressible medium, a methodology is developed that incorporates multiple scattering effects between bubbles and coherent interactions of their individual scattered fields. This method is based on a perturbation theory, and provides for an approximate solution formulated by adding a perturbation to the mathematical description of a linear problem. The solution is defined as a power series, where the first term of the expansion corresponds to the solution of a linear uncoupled equation. The convergence of the expansion is determined by the parameters of the physical bubbles and the acoustic interactions. The model is successfully applied to describe experimental measurements of a model bubble cloud response in a shallow freshwater environment.
authors.affiliation: Department of Hydraulic and Environmental Engineering, Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna 4860, Santiago, Chile.
authors.forename: M P
authors.initials: MP
authors.lastname: Raveau
authors.affiliation: Department of Hydraulic and Environmental Engineering, Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna 4860, Santiago, Chile.
authors.forename: C
authors.initials: C
authors.lastname: Escauriaza
authors.affiliation: Department of Mechanical Engineering and Applied Research Laboratories, The University of Texas at Austin, Austin, Texas 78712, USA.
authors.forename: C N
authors.initials: CN
authors.lastname: Dolder
authors.affiliation: Department of Mechanical Engineering and Applied Research Laboratories, The University of Texas at Austin, Austin, Texas 78712, USA.
authors.forename: P S
authors.initials: PS
authors.lastname: Wilson
authors.affiliation: Institute of Physics, Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna 4860, Santiago, Chile.
authors.forename: C
authors.initials: C
authors.lastname: Feuillade