BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:OptimUS: an open-source Python library for 3D acoustic wave propag
 ation - Dr Pierre Gélat\, University College London\, UK
DTSTART:20241025T130000Z
DTEND:20241025T140000Z
UID:TALK222010@talks.cam.ac.uk
CONTACT:46601
DESCRIPTION:The Helmholtz equation for harmonic wave propagation is a wide
 ly used model for many acoustic phenomena\, such as room acoustics\, sonar
 \, and biomedical ultrasound. The boundary element method (BEM) is one of 
 the most efficient numerical methods to solve Helmholtz transmission probl
 ems and is based on boundary integral formulations that rewrite the volume
 tric partial differential equations into a representation of the acoustic 
 fields in terms of surface potentials at the material interfaces.\n\nOptim
 US (https://github.com/optimuslib/optimus) is a Python library developed a
 t University College London and Pontificia Universidad Católica de Chile.
  Centred around the BEM\, it offers a user-friendly interface via Jupyter 
 Notebooks\, enabling the prediction of acoustic waves in piecewise homogen
 eous media in the frequency domain\, with minimal numerical pollution and 
 dispersion effects. OptimUS can significantly reduce run times relative to
  traditionally used volumetric solvers.\n\n\nThis talk will provide an ove
 rview of the OptimUS interface\, with a focus on case studies where object
 s are large relative to the wavelengths involved. This will include biomed
 ical ultrasound\, which has a growing number of therapeutic applications s
 uch as the treatment of cancers of the liver\, kidney\, and of osteoid ost
 eoma. The modelling of transcranial ultrasound neurostimulation\, an emerg
 ing modality which may one day treat mental health conditions such as depr
 ession\, will also be reviewed. Acoustic wave propagation into the uterus 
 at audio range frequencies will be presented to provide awareness of the i
 mpact of everyday noise exposure on the developing fetus.\n\n\nFinally\, p
 rospective solutions to address nonlinear wave propagation using volume in
 tegral methods will be reviewed\, as well as methods to treat piecewise he
 terogeneous media\, such as bone\, within the propagating medium.
LOCATION:Oatley 1 Meeting Room\, Department of Engineering
END:VEVENT
END:VCALENDAR