Quantifying three dimensional effects in acoustic rough surface ...

Interface roughness can have a significant effect on the scattering of sound energy, and therefore an understanding of the effects of roughness is essential ...

A three-dimensional model for acoustic scattering from rough ocean ...

Scattering of acoustic waves by rough bathymetry is an important factor influencing the performance of array systems. This paper discusses a computer model ...

The effect of 3D surface roughness on acoustic wave propagation in ...

random rough surfaces (e.g. roughness effects on acoustic scattering [3] and electromagnetic. 31 scattering [4]). Another classical method for the analysis ...

Three‐dimensional rough surface scattering using finite elements.

In order to quantify the effects of three dimensional scattering, the scattering of a spherical incident wave from a rough, pressure release ...

(PDF) The effect of 3D surface roughness on acoustic wave ...

PDF | On Feb 1, 2024, Yicheng Yu and others published The effect of 3D surface roughness on acoustic wave propagation in a cylindrical ...

Acoustic Scattering Models from Rough Surfaces: A Brief Review ...

This paper proposes a brief review of acoustic wave scattering models from rough surfaces. This review is intended to provide an up-to-date survey of the ...

A THREE-DIMENSIONAL MODEL FOR ACOUSTIC SCATTERING ...

It incorporates both the effect of a varying sound-speed structure in the ocean volume (refraction) and scattering from rough bathymetry. The ocean region is ...

Efficient modelling of surface roughness effects in additively ...

Among different 3D printing inaccuracies, surface roughness provides additional acoustic losses, mostly due to the enlargement of the boundary ...

3-D Acoustic Scattering from 2-D Rough Surfaces Using A Parabolic ...

For many years, the effects of rough surface scattering were computed using simple models that were applied in two dimensions (2-D) only. A prescribed method of ...

Acoustic Scattering Models from Rough Surfaces: A Brief Review ...

This paper proposes a brief review of acoustic wave scattering models from rough surfaces. This review is intended to provide an up-to-date ...

Acoustic scattering by a three-dimensional elastic object near a ...

The formulation consists of combining a perturbative solution for modeling propagation through the rough surface with a transition (T-) matrix ...

Acoustic Scattering by Mildly Rough Unbounded Surfaces in Three ...

A second kind boundary integral equation formulation is proposed for the sound-soft case, based on a standard ansatz as a combined single- and double-layer ...

A three-dimensional immersed boundary method for accurate ...

By implicitly implementing the free surface boundary condition in three dimensions, this method effectively reduces artificial diffractions and enhances the ...

Effects of changing roughness on acoustic scattering - APL-UW

Acoustic backscattering measurements were made at 40 kHz with the Benthic Acoustic Measurement System ... 3 hours after raking, and (D) 7 hours after raking. The ...

An Efficient Spectral Method for Acoustic Scattering from Rough ...

surface uncertainty has more pronounced effects in back-scattering. ... to the boundary regularity, and extension to three-dimensional obstacle are under inves-.

An efficient multi-layer boundary element method for direct ...

We identify and quantify the 3D validity regions of the approximation models as a function of the surface roughness and correlation length. We characterize and ...

Characterisation of dynamic rough surfaces through airborne ...

The UK Acoustics Network•288 views · 55:49. Go to channel · UKAN+ Webinar: OptimUS: an open-source Python library for 3D acoustic wave ...

Three-dimensional acoustic scattering by layered media - Journals

The scattering of acoustic waves by irregular structures plays an important role in a wide range of problems of scientific and technological ...

Three-Dimensional Acoustic Propagation Through Shallow Water ...

ocean surface have no impact on the horizontal wavenumbers of ... measuring three-dimensional acoustic effects, and the intensity fluctuations in these.

Acoustic scattering by a three-dimensional elastic object near a ...

The ensemble-averaged field scattered by a smooth, bounded, elastic object near a penetrable surface with small-scale random roughness is formulated.