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| inria-00343629, version 2 |
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| We propose here a decomposition of the respiratory tree into three stages which correspond to different mechanical models. The resulting system is described by the Navier-Stokes equation coupled with an ODE (a simple spring model) representing the motion of the thoracic cage. We prove that this problem has at least one solution locally in time for any data and, in the special case where the spring stiffness is equal to zero, we obtain an existence result globally in time provided that the data are small enough. The behaviour of the global model is illustrated by three-dimensional simulations. |
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| a – | |
| 1 : | Laboratoire de Mathématiques Nicolas Oresme (LMNO) |
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CNRS : UMR6139 – Université de Caen |
| 2 : | REO (INRIA Rocquencourt) |
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INRIA – Laboratoire Jacques-Louis Lions |
| 3 : | Laboratoire de Mathématiques d'Orsay (LM-Orsay) |
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CNRS : UMR8628 – Université Paris Sud - Paris XI |
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| Domaine | : | Mathématiques/Equations aux dérivées partiellesMathématiques/Analyse numérique |
| Navier-Stokes equations – local existence – coupling of models – ventilation process – Finite Element Method. |
| Versions disponibles : | v1 (02-12-2008) | v2 (19-03-2009) |
| inria-00343629, version 2 | |
| http://hal.inria.fr/inria-00343629/fr/ | |
| oai:hal.inria.fr:inria-00343629 | |
| Contributeur : Celine Grandmont | |
| Soumis le : Jeudi 19 Mars 2009, 16:17:39 | |
| Dernière modification le : Jeudi 19 Mars 2009, 16:33:25 | |
