Immersed boundary methods: Historical perspective and future outlook

R Verzicco - Annual Review of Fluid Mechanics, 2023‏ - annualreviews.org
Immersed boundary methods (IBMs) are versatile and efficient computational techniques to
solve flow problems in complex geometric configurations that retain the simplicity and …

Stability and conditioning of immersed finite element methods: analysis and remedies

F de Prenter, CV Verhoosel, EH van Brummelen… - … Methods in Engineering, 2023‏ - Springer
This review paper discusses the developments in immersed or unfitted finite element
methods over the past decade. The main focus is the analysis and the treatment of the …

Towards higher-order accurate mass lum** in explicit isogeometric analysis for structural dynamics

TH Nguyen, RR Hiemstra, S Eisenträger… - Computer Methods in …, 2023‏ - Elsevier
We present a mass lum** approach based on an isogeometric Petrov–Galerkin method
that preserves higher-order spatial accuracy in explicit dynamics calculations irrespective of …

Variationally consistent isogeometric analysis of trimmed thin shells at finite deformations, based on the STEP exchange format

Y Guo, J Heller, TJR Hughes, M Ruess… - Computer Methods in …, 2018‏ - Elsevier
Following a series of recent innovations, isogeometric shell analysis based on trimmed CAD
surfaces is currently being developed into an accurate, efficient and mature design-through …

Immersogeometric cardiovascular fluid–structure interaction analysis with divergence-conforming B-splines

D Kamensky, MC Hsu, Y Yu, JA Evans… - Computer methods in …, 2017‏ - Elsevier
This paper uses a divergence-conforming B-spline fluid discretization to address the long-
standing issue of poor mass conservation in immersed methods for computational fluid …

Automating adjoint sensitivity analysis for multidisciplinary models involving partial differential equations

R **ang, SPC van Schie, L Scotzniovsky, J Yan… - Structural and …, 2024‏ - Springer
We present a general framework for incorporating partial differential equation (PDE)-based
models into gradient-based optimization of multidisciplinary systems by integrating FEniCSx …

Optimizing fluid–structure interaction systems with immersogeometric analysis and surrogate modeling: Application to a hydraulic arresting gear

MCH Wu, D Kamensky, C Wang, AJ Herrema… - Computer Methods in …, 2017‏ - Elsevier
This work describes a fluid–structure interaction (FSI) design optimization framework and
applies it to improving the structural performance of a water brake used to stop aircraft …

[HTML][HTML] An eigenvalue stabilization technique for immersed boundary finite element methods in explicit dynamics

S Eisenträger, L Radtke, W Garhuom, S Löhnert… - … & Mathematics with …, 2024‏ - Elsevier
The application of immersed boundary methods in static analyses is often impeded by
poorly cut elements (small cut elements problem), leading to ill-conditioned linear systems of …

Skew-symmetric Nitsche's formulation in isogeometric analysis: Dirichlet and symmetry conditions, patch coupling and frictionless contact

Q Hu, F Chouly, P Hu, G Cheng, SPA Bordas - Computer Methods in …, 2018‏ - Elsevier
A simple skew-symmetric Nitsche's formulation is introduced into the framework of
isogeometric analysis (IGA) to deal with various problems in small strain elasticity: essential …

The shifted interface method: a flexible approach to embedded interface computations

K Li, NM Atallah, GA Main… - International Journal for …, 2020‏ - Wiley Online Library
We propose a new embedded finite element method to simulate partial differential equations
over domains with internal interfaces. Our approach belongs to the family of …