A novel coupled fluid-behavior model for simulating dynamic huddle formation.
A coupled numerical model is developed to examine aggregative behavior in instances where the behavior not only responds to the environment, but the environment responds to the behavior such as fish schooling and penguin huddling. In the coupled model, the full Navier-Stokes equations are solved for...
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2018-01-01
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doaj-98bd3844ebf64c94a1b1593d06de00d32020-11-24T21:35:37ZengPublic Library of Science (PLoS)PLoS ONE1932-62032018-01-01138e020323110.1371/journal.pone.0203231A novel coupled fluid-behavior model for simulating dynamic huddle formation.Wen GuJason K ChristianC Brock WoodsonA coupled numerical model is developed to examine aggregative behavior in instances where the behavior not only responds to the environment, but the environment responds to the behavior such as fish schooling and penguin huddling. In the coupled model, the full Navier-Stokes equations are solved for the wind field using a finite difference method (FDM), and coupled to a smoothed particle hydrodynamics (SPH) model adapted to simulate animal behavior (penguins are individual particles in the SPH). We use the model to examine the dynamics of penguin huddling as a purely individual fitness maximizing behavior. SPH is a mesh-free Lagrangian method driven by local interactions between neighboring fluid particles and their environment allowing particles to act as free ranging 'animals' unconstrained by a computational grid that implicitly interact with one another (a critical element of aggregative behavior). The coupled model is recomputed simultaneously as the huddle evolves over time to update individual particle positions, redefine the properties of the developing huddle (i.e., shape and density), and adjust the wind field flowing through and around the dynamic huddle. This study shows the ability of a coupled model to predict the dynamic properties of penguin huddling, to quantify biometrics of individual particle "penguins", and to confirm communal penguin huddling behavior as an individualistic behavior.http://europepmc.org/articles/PMC6118378?pdf=render |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Wen Gu Jason K Christian C Brock Woodson |
spellingShingle |
Wen Gu Jason K Christian C Brock Woodson A novel coupled fluid-behavior model for simulating dynamic huddle formation. PLoS ONE |
author_facet |
Wen Gu Jason K Christian C Brock Woodson |
author_sort |
Wen Gu |
title |
A novel coupled fluid-behavior model for simulating dynamic huddle formation. |
title_short |
A novel coupled fluid-behavior model for simulating dynamic huddle formation. |
title_full |
A novel coupled fluid-behavior model for simulating dynamic huddle formation. |
title_fullStr |
A novel coupled fluid-behavior model for simulating dynamic huddle formation. |
title_full_unstemmed |
A novel coupled fluid-behavior model for simulating dynamic huddle formation. |
title_sort |
novel coupled fluid-behavior model for simulating dynamic huddle formation. |
publisher |
Public Library of Science (PLoS) |
series |
PLoS ONE |
issn |
1932-6203 |
publishDate |
2018-01-01 |
description |
A coupled numerical model is developed to examine aggregative behavior in instances where the behavior not only responds to the environment, but the environment responds to the behavior such as fish schooling and penguin huddling. In the coupled model, the full Navier-Stokes equations are solved for the wind field using a finite difference method (FDM), and coupled to a smoothed particle hydrodynamics (SPH) model adapted to simulate animal behavior (penguins are individual particles in the SPH). We use the model to examine the dynamics of penguin huddling as a purely individual fitness maximizing behavior. SPH is a mesh-free Lagrangian method driven by local interactions between neighboring fluid particles and their environment allowing particles to act as free ranging 'animals' unconstrained by a computational grid that implicitly interact with one another (a critical element of aggregative behavior). The coupled model is recomputed simultaneously as the huddle evolves over time to update individual particle positions, redefine the properties of the developing huddle (i.e., shape and density), and adjust the wind field flowing through and around the dynamic huddle. This study shows the ability of a coupled model to predict the dynamic properties of penguin huddling, to quantify biometrics of individual particle "penguins", and to confirm communal penguin huddling behavior as an individualistic behavior. |
url |
http://europepmc.org/articles/PMC6118378?pdf=render |
work_keys_str_mv |
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