From CAD geometry to simulation with isogeometric analysis以等几何分析连接 CAD 几何与仿真

I am a Postdoctoral Researcher in the Numerical Analysis group of the Delft Institute of Applied Mathematics (DIAM), Faculty of Electrical Engineering, Mathematics & Computer Science (EEMCS), at the Delft University of Technology (TU Delft). Working at the interface of computer-aided design (CAD) and computer-aided engineering (CAE), I develop isogeometric analysis (IGA) methods that turn a CAD model into a discretization that is geometrically exact, mathematically well-posed, and fast to solve. The core of my research is analysis-suitable spline parameterization and mesh generation — optimization- and PDE-based constructions of injective, high-quality parameterizations and boundary parameter matching — together with fast and robust solvers based on preconditioned Anderson acceleration.

These methods have moved from theory into practice. I lead the development of DTATools (Design-Through-Analysis Tools), an integrated isogeometric CAD–CAE platform that carries one spline model from design through simulation and optimization back to CAD, and of SplineMesh, spline-based structured mesh generation for twin-screw machines that feeds the deforming-geometry CFD workflow of the commercial SCORG™ toolchain. My recent work extends IGA to semi-analytical thermal simulation of laser powder bed fusion (LPBF), an isogeometric lattice Boltzmann method (IGA-LBM) for flows on CAD-exact geometries, and a parameterization-driven arbitrary Lagrangian–Eulerian (ALE) method for large-deformation fluid–structure interaction. I am a co-developer of the open-source C++ library Geometry + Simulation Modules (G+Smo) and a reviewer for Mathematical Reviews.

I am happy to discuss collaborations on spline parameterization, mesh generation, and isogeometric methods for engineering applications — feel free to reach out by email. My research agenda, projects and supervision and CV give a fuller picture of where this work is heading.

News

• [10/2026]: Matthias Möller, Jingya Li and I visited the School of Mathematical Sciences, Dalian University of Technology, Dalian, China, on October 19, 2026, where we gave three talks:
  • “IGANets: Isogeometric Analysis Networks” — Matthias Möller.
  • “Isogeometric Methods for Partitioned Fluid–Structure Interaction with Large Deformations” — Jingya Li.
  • “From Geometric Design to Numerical Analysis: Isogeometric CAD-CAE Integration with DTATools” — presented by me, introducing DTATools (Design-Through-Analysis Tools), our isogeometric design-to-analysis platform.

  Prof. Yang Xia, Prof. Xuefeng Zhu and Ph.D. student Jingyi Cao also gave talks. Many thanks to Prof. Chungang Zhu for organizing the event and for the warm hospitality!

• [10/2026]: Our group presented four talks at IGA 2026 (14th International Conference on Isogeometric Analysis), Waseda University, Tokyo, Japan, October 11–14, 2026.
  • “A fast semi-analytical isogeometric framework for thermal problems with moving heat sources” — presented by me (Mon, Oct 12, MS 04).
  • “Fast r-refinement in isogeometric analysis using low-rank approximations” — presented by Angelos Mantzaflaris (Mon, Oct 12, MS 04).
  • “Parameterization-driven isogeometric ALE for fluid–structure interaction under large deformations” — presented by Jingya Li (Tue, Oct 13, MS 03).
  • “A body-fitted isogeometric lattice Boltzmann method for complex geometries” — presented by Monica Lacatus (Tue, Oct 13, MS 03).

• [09/2026]: Our paper Parameterization-driven arbitrary Lagrangian–Eulerian method for large-deformation isogeometric fluid–structure interaction has been published in Computer Methods in Applied Mechanics and Engineering; it recasts mesh motion as a sequence of domain parameterization problems, enabling long-running large-rotation simulations. Congratulations to Jingya, and many thanks to Hugo, Henk and Matthias!

• [09/2026]: I presented “SplineMesh v3.0: Robust spline-based structured mesh generation for positive-displacement rotary machines with sharp features” at ICSM 2026 (International Conference on Screw Machines), Dortmund, Germany, September 8–10, 2026. The new version adds automatic fold detection and corner-preserving local untangling, enabling robust meshing of the full working cycle of twin-screw dry vacuum pumps. Many thanks to Matthias, Dr. Sham Rane and Prof. Ahmed Kovačević!

• [07/2026]: I gave an invited talk, “CAD-CAE Integration: From Theory and Algorithms to Engineering Practice”, at CSIAM GDC 2026 (18th CSIAM Conference on Geometric Design and Computing), Hohhot, China. Our paper on B-spline-based receding-horizon trajectory optimization for UAV obstacle avoidance received the Conference Best Paper Award, and our poster Extended r-adaptive isogeometric analysis for weak-discontinuous problems the Conference Best Poster Award.

• [07/2026]: I presented “An isogeometric formulation of the lattice Boltzmann method on CAD-exact geometries” at WCCM-ECCOMAS 2026 (17th World Congress on Computational Mechanics & 10th ECCOMAS Congress), Munich, Germany. Many thanks to Monica and Matthias!

• [07/2026]: Jingyi presented our paper Extended r-adaptive isogeometric analysis for weak-discontinuous problems at SPM/SMI 2026 (Symposium on Solid and Physical Modeling & Shape Modeling International), Istanbul, Türkiye. Many thanks to Jingyi, Chungang and Matthias! → Talk

• [05/2026]: Our paper Extended r-adaptive isogeometric analysis for weak-discontinuous problems has been published in Computer-Aided Design.

• [05/2026]: I presented the poster Efficient Thermal Simulation in Metal Additive Manufacturing via Semi-Analytical Isogeometric Analysis at HOFEIM 2026, Siena, Italy: a semi-analytical IGA framework for LPBF thermal simulation with up to 258× speed-up over conventional FEM. → Talk