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Latent Space Subdivision: Stable and Controllable Time Predictions for Fluid Flow [article]

Steffen Wiewel, Byungsoo Kim, Vinicius C. Azevedo, Barbara Solenthaler, Nils Thuerey
2020 arXiv   pre-print
Correspondence to: Steffen Wiewel <>.  ...  First, we evaluate a regular prediction approach with no reinjection of physical information (denoted VelDen) that is in sync with previous work (Kim et al., 2019; Wiewel et al., 2019) .  ... 
arXiv:2003.08723v1 fatcat:ovdf7njbhfh5lpeswa6olgubxm

Latent-space Physics: Towards Learning the Temporal Evolution of Fluid Flow [article]

Steffen Wiewel, Moritz Becher, Nils Thuerey
2019 arXiv   pre-print
We propose a method for the data-driven inference of temporal evolutions of physical functions with deep learning. More specifically, we target fluid flows, i.e. Navier-Stokes problems, and we propose a novel LSTM-based approach to predict the changes of pressure fields over time. The central challenge in this context is the high dimensionality of Eulerian space-time data sets. We demonstrate for the first time that dense 3D+time functions of physics system can be predicted within the latent
more » ... ces of neural networks, and we arrive at a neural-network based simulation algorithm with significant practical speed-ups. We highlight the capabilities of our method with a series of complex liquid simulations, and with a set of single-phase buoyancy simulations. With a set of trained networks, our method is more than two orders of magnitudes faster than a traditional pressure solver. Additionally, we present and discuss a series of detailed evaluations for the different components of our algorithm.
arXiv:1802.10123v3 fatcat:m6jbm5xzrbci3ehkb3vxm7j2rq

Towards Fast Simulation of Environmental Fluid Mechanics with Multi-Scale Graph Neural Networks [article]

Mario Lino, Stathi Fotiadis, Anil A. Bharath, Chris Cantwell
2022 arXiv   pre-print
Steffen Wiewel, Moritz Becher, and Nils Thuerey. Latent space physics: Towards learning the temporal evolution of fluid flow. In Computer Graphics Forum. Wiley Online Library, 2019.  ...  ., 2019; Wiewel et al., 2019; .  ... 
arXiv:2205.02637v1 fatcat:pqo3cr2ezbh3djg5lzmxhdypna

Learning mesh-based numerical analysis using graph neural networks

Transactions of the Japan Society for Computational Engineering and Science  
Proceedings of the National Academy of Sciences, Vol. 116, No. 28, pp. 13825-13832, 2019. (4) Steffen Wiewel, Moritz Becher, and Nils Thuerey.  ... 
doi:10.11421/jsces.2020.20201005 fatcat:vmgc2pcyffeb5gr7qqdg7m4lkq

Ecologist engagement in translational science is imperative for building resilience to global change threats

Kennedy Rubert-Nason, AM Aramati Casper, Matt Jurjonas, Caitlin Mandeville, Rebecca Potter, Kirsten Schwarz
2021 Rethinking Ecology  
difficulties in sustaining participation, excessive stakeholder workloads, lobbyist influence, frustration with the inability of science to give definitive answers, and communication barriers (Nyden and Wiewel  ...  adaptation to changes in climate, sea level, and toxic pollutants that are forecast by the year 2030 (e.g., NRC 2007;; IPCC 2008; Lidskog and Waterton 2016; Chen et al. 2017b; Hawken 2017; IPCC 2018; Steffen  ... 
doi:10.3897/rethinkingecology.6.64103 doaj:fcfc867de454434cbc6e5b45752c0f1a fatcat:sqozk4nemjhuzpz52j3j5a2rei

Avian response to shade-layer restoration in coffee plantations in Puerto Rico

Amarilys D. Irizarry, Jaime A. Collazo, Krishna Pacifici, Brian J. Reich, Kathryn E. Battle
2018 Restoration Ecology  
This would be consistent with territorial individuals, likely tied to breeding sites (Wiewel et al. 2013 ).  ...  of restored boundaries within 5 coffee plantations, taken from different points in time (2004, 2007, 2010, and 2014 LIST OF CONCEPTUAL OVERVIEW Human activities dominate landscapes globally (Steffen  ... 
doi:10.1111/rec.12697 fatcat:x5l4jwhe65avjjqssyzipl6r3a

Latent Space Simulation for Carbon Capture Design Optimization [article]

Brian Bartoldson, Rui Wang, Yucheng Fu, David Widemann, Sam Nguyen, Jie Bao, Zhijie Xu, Brenda Ng
2021 arXiv   pre-print
Energy Procedia, 114:650–665, 2017. [28] Steffen Wiewel, Moritz Becher, and Nils Thuerey. Latent space physics: Towards learning the temporal evolution of fluid flow.  ... 
arXiv:2112.11656v1 fatcat:tvecpx3ivvexnpq7yvmf6bo4f4

Biologische Invasionen und ihre Auswirkungen auf insulare Ökosysteme

Birgit Kaiserlehner
2018 unpublished
Zit. nach: Steffen Oppel, Brent M. Beaven, Mark Bolton u.a., Eradication of Invasive Mammals on Islands Inhabited by Humans and Domestic Animals.  ...  Wiewel, Amy A. Yackel Adams, Gordon H. Rodda, Distribution, Diversity, and Biomass of Introduced Small Mammals in the Southern Mariana Islands.  ... 
doi:10.25365/thesis.50732 fatcat:igyqeytn7zfy3p3h7fhdhttnma

Adapting Photovoice to Visualise and Influence Environmental Behaviour across Australia, Bangladesh, and China

Environmentally, the ecological crisis has worsened despite growing awareness (Steffen, et al. 2015) .  ...  Power dynamics and other insider-outsider tensions in PAR have been widely discussed in the literature (Minkler 2005; Minkler 2004; Nyden and Wiewel 1992) .  ... 
doi:10.26180/5ecdbbea04252 fatcat:akxh3a6gkvfidfzlp7oapmkwiy

'The leadership interface': effective leadership communication for contemporary global leaders

Ian C. Woodward
A study by Cherulnik, Donley, Wiewel and Miller (2001) , which examined charismatic leaders' nonverbal behaviors (expressiveness and immediacy), found these to be "contagious"-evoking similar behaviors  ...  Steffen, Greenwald & Langmeyer, 1979) ; and where communication traits, e.g. empathy and attentiveness, are observable (Wiemann, 1977) show empathy (Bakx et al., 2002) ; accuracy in reading facial expressions  ... 
doi:10.25949/19431389.v1 fatcat:n7ixrygekza6dlxajbynaugf5e