Precomputed Radiative Heat Transport for Efficient Thermal Simulation.

Autor: Freude C; TU Wien, Institute of Visual Computing and Human-Centered Technology Austria., Hahn D; TU Wien, Institute of Visual Computing and Human-Centered Technology Austria., Rist F; TU Wien, Institute of Visual Computing and Human-Centered Technology Austria.; King Abdullah University of Science and Technology, Visual Computing Center Kingdom of Saudi Arabia., Lipp L; TU Wien, Institute of Visual Computing and Human-Centered Technology Austria., Wimmer M; TU Wien, Institute of Visual Computing and Human-Centered Technology Austria.
Jazyk: angličtina
Zdroj: Computer graphics forum : journal of the European Association for Computer Graphics [Comput Graph Forum] 2023 Oct; Vol. 42 (7), pp. e14957. Date of Electronic Publication: 2023 Nov 05.
DOI: 10.1111/cgf.14957
Abstrakt: Architectural design and urban planning are complex design tasks. Predicting the thermal impact of design choices at interactive rates enhances the ability of designers to improve energy efficiency and avoid problematic heat islands while maintaining design quality. We show how to use and adapt methods from computer graphics to efficiently simulate heat transfer via thermal radiation, thereby improving user guidance in the early design phase of large-scale construction projects and helping to increase energy efficiency and outdoor comfort. Our method combines a hardware-accelerated photon tracing approach with a carefully selected finite element discretization, inspired by precomputed radiance transfer. This combination allows us to precompute a radiative transport operator, which we then use to rapidly solve either steady-state or transient heat transport throughout the entire scene. Our formulation integrates time-dependent solar irradiation data without requiring changes in the transport operator, allowing us to quickly analyze many different scenarios such as common weather patterns, monthly or yearly averages, or transient simulations spanning multiple days or weeks. We show how our approach can be used for interactive design workflows such as city planning via fast feedback in the early design phase.
(© 2023 The Authors. Computer Graphics Forum published by Eurographics ‐ The European Association for Computer Graphics and John Wiley & Sons Ltd.)
Databáze: MEDLINE
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