Abstract
The first step towards applying isogeometric analysis techniques to solve PDE problems on a given domain consists in generating an analysis-suitable map** operator between parametric and physical domains with one or several patches from no more than a description of the boundary contours of the physical domain. A subclass of the multitude of the available parameterization algorithms are those based on the principles of Elliptic Grid Generation (EGG) which, in their most basic form, attempt to approximate a map** operator whose inverse is composed of harmonic functions. The main challenge lies in finding a formulation of the problem that is suitable for a computational approach and a common strategy is to approximate the map** operator by means of solving a PDE-problem. PDE-based EGG is well-established in classical meshing and first generalization attempts to spline-based descriptions (as is mandatory in IgA) have been made. Unfortunately, all of the practically viable PDE-based approaches impose certain requirements on the employed spline-basis, in particular global C ≥1-continuity.
This paper discusses an EGG-algorithm for the generation of planar parameterizations with locally reduced smoothness (i.e., with support for locally only C 0-continuous bases). A major use case of the proposed algorithm is that of multipatch parameterizations, made possible by the support of C 0-continuities. This paper proposes a specially-taylored solution algorithm that exploits many characteristics of the PDE-problem and is suitable for large-scale applications. It is discussed for the single-patch case before generalizing its concepts to multipatch settings. This paper is concluded with three numerical experiments and a discussion of the results.
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References
B. N. Azarenok. Generation of structured difference grids in two-dimensional nonconvex domains using map**s. Computational Mathematics and Mathematical Physics, 49(5):797–809, 2009.
L. T. Biegler and V. M. Zavala. Large-scale nonlinear programming using IPOPT: An integrating framework for enterprise-wide dynamic optimization. Computers & Chemical Engineering, 33(3):575–582, 2009.
F. Buchegger and B. Jüttler. Planar multi-patch domain parameterization via patch adjacency graphs. Computer-Aided Design, 82:2–12, 2017.
F. Buchegger, B. Jüttler, and A. Mantzaflaris. Adaptively refined multi-patch B-splines with enhanced smoothness. Applied Mathematics and Computation, 272:159–172, 2016.
A. Falini and B. Jüttler. Thb-splines multi-patch parameterization for multiply-connected planar domains via template segmentation. Journal of Computational and Applied Mathematics, 349:390–402, 2019.
L. Gao and V. M. Calo. Fast isogeometric solvers for explicit dynamics. Computer Methods in Applied Mechanics and Engineering, 274:19–41, 2014.
W. J. Gordon and C. A. Hall. Transfinite element methods: Blending-function interpolation over arbitrary curved element domains. Numerische Mathematik, 21(2):109–129, 1973.
J. Gravesen, A. Evgrafov, D.-M. Nguyen, and P. Nørtoft. Planar parametrization in isogeometric analysis. In International Conference on Mathematical Methods for Curves and Surfaces, pages 189–212. Springer, 2012.
J. Hinz, M. Möller, and C. Vuik. Elliptic grid generation techniques in the framework of isogeometric analysis applications. Computer Aided Geometric Design, 2018.
J. Hinz, M. Möller, and C. Vuik. Spline-based parameterization techniques for twin-screw machine geometries. In IOP Conference Series: Materials Science and Engineering, volume 425, page 012030. IOP Publishing, 2018.
D. A. Knoll and D. E. Keyes. Jacobian-free Newton–Krylov methods: A survey of approaches and applications. Journal of Computational Physics, 193(2):357–397, 2004.
P. Lamby and K. Brakhage. Elliptic grid generation by B-spline collocation. In Proceedings of the 10th International Conference on Numerical Grid Generation in Computational Field Simulations, FORTH, Crete, Greece, 2007.
J. Manke. A tensor product B-spline method for numerical grid generation. Technical report, Washington Univ., Seattle, WA (USA). Dept. of Applied Mathematics, 1989.
R. M. Schoen and S.-T. Yau. Lectures on harmonic maps, volume 2. Amer Mathematical Society, 1997.
M. C. Seiler and F. A. Seiler. Numerical recipes in C: The art of scientific computing. Risk Analysis, 9(3):415–416, 1989.
A. M. Winslow. Adaptive-mesh zoning by the equipotential method. Technical report, Lawrence Livermore National Lab., CA (USA), 1981.
S. **ao, H. Kang, X.-M. Fu, and F. Chen. Computing iga-suitable planar parameterizations by polysquare-enhanced domain partition. Computer Aided Geometric Design, 62:29–43, 2018.
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Hinz, J., Möller, M., Vuik, C. (2021). An IGA Framework for PDE-Based Planar Parameterization on Convex Multipatch Domains. In: van Brummelen, H., Vuik, C., Möller, M., Verhoosel, C., Simeon, B., Jüttler, B. (eds) Isogeometric Analysis and Applications 2018. IGAA 2018. Lecture Notes in Computational Science and Engineering, vol 133. Springer, Cham. https://doi.org/10.1007/978-3-030-49836-8_4
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