Jan Hansen-Palmus

dblp:349/0267 · DBLP profile ↗
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1ranked-venue papers
0as first author
1since 2021 · last 2024
—ORCID · none

Domains — the database's venue-derived domains; a paper can count in several

Artificial intelligence and machine learning · 1 · 1 since 2021

Expertise — from the expertise taxonomy: the topics of the expert's papers under the CCF categories. A weight counts papers with recency: 1 for a paper about the topic, 0.3 when the topic is its context, halved every five years.

Interdisciplinary, comprehensive, and emerging computing
1 paper
Computational science and engineering · 100%
Artificial intelligence
1 paper
Generative modeling · 100%

Topics — the 3 heaviest of 3, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
Machine learning › Generative modeling › generative model
generative surrogate model
0.812024
From Zero to Turbulence: Generative Modeling for 3D Flow Simulation · ICLR 2024
Computational science and engineering
computational fluid dynamics
0.812024
From Zero to Turbulence: Generative Modeling for 3D Flow Simulation · ICLR 2024
Computational science and engineering › computational fluid dynamics
turbulence simulation
0.812024
From Zero to Turbulence: Generative Modeling for 3D Flow Simulation · ICLR 2024

Methods — techniques the papers use, named apart from their topics

generative modeling · 1.5autoregressive model · 1.5
YearPublicationVenuePosition
2024 From Zero to Turbulence: Generative Modeling for 3D Flow Simulation
abstract
Simulations of turbulent flows in 3D are one of the most expensive simulations in computational fluid dynamics (CFD). Many works have been written on surrogate models to replace numerical solvers for fluid flows with faster, learned, autoregressive models. However, the intricacies of turbulence in three dimensions necessitate training these models with very small time steps, while generating realistic flow states requires either long roll-outs with many steps and significant error accumulation or starting from a known, realistic flow state—something we aimed to avoid in the first place. Instead, we propose to approach turbulent flow simulation as a generative task directly learning the manifold of all possible turbulent flow states without relying on any initial flow state. For our experiments, we introduce a challenging 3D turbulence dataset of high-resolution flows and detailed vortex structures caused by various objects and derive two novel sample evaluation metrics for turbulent flows. On this dataset, we show that our generative model captures the distribution of turbulent flows caused by unseen objects and generates high-quality, realistic samples amenable for downstream applications without access to any initial state.
Marten Lienen, David Lüdke, Jan Hansen-Palmus, Stephan Günnemann
ICLR3