109 citations · 118 across the 7 of their papers we have counts for
4 papers · 1 filter
Shape calculus and automatic differentiation for multi-phase level-set topology optimisation with unfitted finite elements
Zachary J. Wegert, Martin Berggren, Vivien J. Challis
We present shape calculus techniques and a scalable automatic shape differentiation framework for multi-phase topology optimisation on unfitted discretisations defined by several l…
A better compression driver? CutFEM 3D shape optimization taking viscothermal losses into account
Martin Berggren, Anders Bernland, André Massing +2
The compression driver, the standard sound source for midrange acoustic horns, contains a cylindrical compression chamber connected to the horn throat through a system of channels…
Shape calculus for fitted and unfitted discretizations: domain transformations vs. boundary-face dilations
Martin Berggren
Shape calculus concerns the calculation of directional derivatives of some quantity of interest, typically expressed as an integral. This article introduces a type of shape calculu…
A Nitsche-type Method for Helmholtz Equation with an Embedded Acoustically Permeable Interface
Esubalewe Lakie Yedeg, Eddie Wadbro, Peter Hansbo +2
We propose a new finite element method for Helmholtz equation in the situation where an acoustically permeable interface is embedded in the computational domain. A variant of Nitsc…