Zobrazeno 1 - 10
of 70
pro vyhledávání: '"Marek Morzyński"'
Publikováno v:
Mathematical Modelling and Analysis, Vol 13, Iss 3 (2008)
This article presents application of the Principal Component Analysis method for analysis of geometry of biological objects and computation of three dimensional anthropometric database. In this work as the biological objects the fifteen human femur b
Externí odkaz:
https://doaj.org/article/78c39203cbb94818abec1d3c42c1dc73
Publikováno v:
Mathematical Modelling and Analysis, Vol 13, Iss 1 (2008)
The construction of low‐dimensional models of the flow, containing only reduced number of degrees of freedom, is the essential prerequisite of closed‐loop control of that flow. Presently used models usually base on the Galerkin method, where the
Externí odkaz:
https://doaj.org/article/ffffd85d53de481b8f840fe40faf42ea
Publikováno v:
Journal of Fluid Mechanics. 934
We propose a self-supervised cluster-based hierarchical reduced-order modelling methodology to model and analyse the complex dynamics arising from a sequence of bifurcations for a two-dimensional incompressible flow of the fluidic pinball. The hierar
Publikováno v:
Journal of Fluid Mechanics
Journal of Fluid Mechanics, Cambridge University Press (CUP), 2021, 918, ⟨10.1017/jfm.2021.299⟩
Journal of Fluid Mechanics, 2021, 918, ⟨10.1017/jfm.2021.299⟩
Journal of Fluid Mechanics, Cambridge University Press (CUP), 2021, 918, ⟨10.1017/jfm.2021.299⟩
Journal of Fluid Mechanics, 2021, 918, ⟨10.1017/jfm.2021.299⟩
We propose an aerodynamic force model associated with a Galerkin model for the unforced fluidic pinball, the two-dimensional flow around three equal cylinders with one radius distance to each other. The starting point is a Galerkin model of a bluff-b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c053aa3241b51accb72f7f0762219535
https://hal-universite-paris-saclay.archives-ouvertes.fr/hal-03482777
https://hal-universite-paris-saclay.archives-ouvertes.fr/hal-03482777
Autor:
Marek Morzyński, Richard Semaan, Bernd R. Noack, Rishabh Ishar, Marian Albers, Pascal S. Meysonnat, Wolfgang Schröder, Daniel Fernex, Eurika Kaiser
Publikováno v:
Journal of Fluid Mechanics
Journal of Fluid Mechanics, Cambridge University Press (CUP), 2019, 874, pp.720-755. ⟨10.1017/jfm.2019.447⟩
Journal of Fluid Mechanics, Cambridge University Press (CUP), 2019, 874, pp.720-755. ⟨10.1017/jfm.2019.447⟩
We present the first general metric for attractor overlap (MAO) facilitating an unsupervised comparison of flow data sets. The starting point is two or more attractors, i.e., ensembles of states representing different operating conditions. The propos
Publikováno v:
Journal of Fluid Mechanics
Journal of Fluid Mechanics, 2021, 917, pp.A42. ⟨10.1017/jfm.2021.301⟩
Journal of Fluid Mechanics, Cambridge University Press (CUP), 2021, 917, ⟨10.1017/jfm.2021.301⟩
Journal of Fluid Mechanics, 2021, 917, pp.A42. ⟨10.1017/jfm.2021.301⟩
Journal of Fluid Mechanics, Cambridge University Press (CUP), 2021, 917, ⟨10.1017/jfm.2021.301⟩
We stabilize the flow past a cluster of three rotating cylinders, the fluidic pinball, with automated gradient-enriched machine learning algorithms. The control laws command the rotation speed of each cylinder in an open- and closed-loop manner. Thes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2dedbf34022e9745baff5939272d111a
https://hal.science/hal-03321015
https://hal.science/hal-03321015
Publikováno v:
Theoretical and Computational Fluid Dynamics. 31:579-593
The ability to manipulate and control fluid flows is of great importance in many scientific and engineering applications. The proposed closed-loop control framework addresses a key issue of model-based control: The actuation effect often results from
Publikováno v:
11th Chaotic Modeling and Simulation International Conference
11th Chaotic Modeling and Simulation International Conference, pp.205-213, 2019, ⟨10.1007/978-3-030-15297-0_19⟩
International Conference on Chaotic Modeling, Simulation and Applications
International Conference on Chaotic Modeling, Simulation and Applications, Chaos, Jun 2018, Rome, Italy
11th Chaotic Modeling and Simulation International Conference ISBN: 9783030152963
11th Chaotic Modeling and Simulation International Conference, pp.205-213, 2019, ⟨10.1007/978-3-030-15297-0_19⟩
International Conference on Chaotic Modeling, Simulation and Applications
International Conference on Chaotic Modeling, Simulation and Applications, Chaos, Jun 2018, Rome, Italy
11th Chaotic Modeling and Simulation International Conference ISBN: 9783030152963
International audience; The fluidic pinball is a geometrically simple flow configuration with three rotating cylinders on the vertex of an equilateral triangle. Yet, it remains physically rich enough to host a range of interacting frequencies and to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bedc3dc00c21d78dc41bc8d410278ce8
We address a challenge of active flow control: the optimization of many actuation parameters guaranteeing fast convergence and avoiding suboptimal local minima. This challenge is addressed by a new optimizer, called the explorative gradient method (E
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bb9bec812749b6eca2fb91db12b91fa0
http://arxiv.org/abs/1905.12036
http://arxiv.org/abs/1905.12036
Autor:
Nan, Deng, Luc, Pastur, Noack, Bernd, Guy, Cornejo-Maceda, François, Lusseyran, Jean-Christophe, Loiseau, Marek, Morzyński
Publikováno v:
Proceedings of the 22m Recontre du Non Linéare
22m Recontre du Non Linéare
22m Recontre du Non Linéare, Mar 2019, Paris, France
22m Recontre du Non Linéare
22m Recontre du Non Linéare, Mar 2019, Paris, France
International audience; Nous nous intéressonsà la dynamique transitoire d'une configuration fluide formée de trois cylindres fixes distribués sur un triangleéquilatéral enécoulement transverse (pinball fluidique), pour différentes valeurs du
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::714942e38247d010b972d47754d7eac8
https://hal.archives-ouvertes.fr/hal-02398861
https://hal.archives-ouvertes.fr/hal-02398861