Scan-Based Immersed Isogeometric Flow Analysis

Book chapter (2023)

Authors

C.V. Verhoosel Computational Design and Mechanics - Mechanical, Maritime and Materials Engineering , Eindhoven University of Technology
E. Harald van Brummelen Eindhoven University of Technology
Sai C. Divi Eindhoven University of Technology
Frits de Prenter Wind Energy - Aerospace Engineering
Research Group
Wind Energy (Aerospace Engineering) (TU Delft)
Copyright: © 2023 C.V. Verhoosel, E. Harald van Brummelen, Sai C. Divi, Frits de Prenter
DOI
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https://doi.org/10.1007/978-3-031-36942-1_14
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Published Date

2023

Language

English

Reuse Rights

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Faculty

Aerospace Engineering

Department

Flow Physics and Technology

Research Group

Wind Energy

Abstract

This chapter reviews the work conducted by our team on scan-based immersed isogeometric analysis for flow problems. To leverage the advantageous properties of isogeometric analysis on complex scan-based domains, various innovations have been made: (i) A spline-based segmentation strategy has been developed to extract a geometry suitable for immersed analysis directly from scan data; (ii) A stabilized equal-order velocity-pressure formulation for the Stokes problem has been proposed to attain stable results on immersed domains; (iii) An adaptive integration quadrature procedure has been developed to improve computational efficiency; (iv) A mesh refinement strategy has been developed to capture small features at a priori unknown locations, without drastically increasing the computational cost of the scan-based analysis workflow. We review the key ideas behind each of these innovations, and illustrate these using a selection of simulation results from our work. A patient-specific scan-based analysis case is reproduced to illustrate how these innovations enable the simulation of flow problems on complex scan data.