Zobrazeno 1 - 10
of 719
pro vyhledávání: '"Logg, A."'
Autor:
Somanath, Sanjay, Naserentin, Vasilis, Eleftheriou, Orfeas, Sjölie, Daniel, Wästberg, Beata Stahre, Logg, Anders
The desired outcome for urban digital twins is an automatically generated detailed 3D model of a building from aerial imagery, footprints, LiDAR, or a fusion of these. Such 3D models have applications in architecture, civil engineering, urban plannin
Externí odkaz:
http://arxiv.org/abs/2305.02242
We present a cut finite element method for the heat equation on two overlapping meshes: a stationary background mesh and an overlapping mesh that moves around inside/"on top" of it. Here the overlapping mesh is prescribed a simple continuous motion,
Externí odkaz:
http://arxiv.org/abs/2302.00337
Autor:
Naserentin, Vasilis, Logg, Anders
The concept of creating digital twins, connected digital models of physical systems, is gaining increasing attention for modeling and simulation of whole cities. The basis for building a digital twin of a city is the generation of a 3D city model, of
Externí odkaz:
http://arxiv.org/abs/2210.05250
Publikováno v:
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol X-4-W4-2024, Pp 131-136 (2024)
The rapid urbanization trend has led to complex challenges in managing urban environments, ranging from energy consumption to environmental quality and public health. In response, the concept of city digital twins has emerged, offering a promising ap
Externí odkaz:
https://doaj.org/article/141c684c13184aa98e52be43976cec5e
Autor:
Sanjay Somanath, Vasilis Naserentin, Orfeas Eleftheriou, Daniel Sjölie, Beata Stahre Wästberg, Anders Logg
Publikováno v:
Remote Sensing, Vol 16, Iss 11, p 1939 (2024)
A key feature for urban digital twins (DTs) is an automatically generated detailed 3D representation of the built and unbuilt environment from aerial imagery, footprints, LiDAR, or a fusion of these. Such 3D models have applications in architecture,
Externí odkaz:
https://doaj.org/article/23937c92d95641a986bd592adfd09bd7
The multimesh finite element method enables the solution of partial differential equations on a computational mesh composed by multiple arbitrarily overlapping meshes. The discretization is based on a continuous--discontinuous function space with int
Externí odkaz:
http://arxiv.org/abs/1805.00110
We analyze a new framework for expressing finite element methods on arbitrarily many intersecting meshes: multimesh finite element methods. The multimesh finite element method, first presented in [40], enables the use of separate meshes to discretize
Externí odkaz:
http://arxiv.org/abs/1804.06455
Publikováno v:
Phys. Rev. D 99, 024012 (2019)
We numerically investigate limits of a two-parameter family of stationary solutions to the Einstein-Vlasov system. The solutions are toroidal and have non-vanishing angular momentum. As one tunes to more relativistic solutions (measured for example b
Externí odkaz:
http://arxiv.org/abs/1803.11224
We present a new framework for expressing finite element methods on multiple intersecting meshes: multimesh finite element methods. The framework enables the use of separate meshes to discretize parts of a computational domain that are naturally sepa
Externí odkaz:
http://arxiv.org/abs/1803.08741
Publikováno v:
In Proceedings of the 23rd ACM Symposium on Virtual Reality Software and Technology (VRST 2017). ACM, New York, NY, USA, Article 87
We present a mixed reality application (HoloFEM) for the Microsoft HoloLens. The application lets a user define and solve a physical problem governed by Poisson's equation with the surrounding real world geometry as input data. Holograms are used to
Externí odkaz:
http://arxiv.org/abs/1711.07790