ESPCI web site
PMMH’s weekly seminar is held every Friday at 11 am (map)
Stéphane Perrard
Etienne Reyssat
Virgile Thiévenaz
PMMH
BARRE CASSAN
BAT A 1ER ETAGE CASE 18
7 QUAI SAINT BERNARD
75005 PARIS
France
Tel : (33) 1 40 79 45 22
Séminaire PMMH-Bertrand Maury (Dpt maths, ENS)
Faster is Slower effect in crowds
The so-called Faster is Slower (FiS) effect is commonly observed in real-life or experimental situations. In the context of evacuation processes, it expresses that increasing the speed (or, more generally, the eagerness to egress) of individuals may induce a reduction of the flow through the exit door. We propose an investigation of the various ingredients which can be mobilized to reproduce this phenomenon. For some models, an additional frictional term is the key ingredient to recover the FiS effect, but friction is not strictly necessary. We shall detail in particular how, in the context of non-frictional granular models, the pathologic character of an underlying discrete Laplace operator can be identified as an alternative explanation of the FiS effect.
The audience is composed of people with rather heterogeneous backgrounds including specialists in solids, fluids, granular flows, statistical physics... so the idea is to keep your talk understandable by people not necessarily working in your field... The seminar time slot runs from 11am to noon so the best is to make the talk last around 45 minutes to leave some time for discussion.
- Séminaires ESPCI-ENS de biophysique
- Séminaires du Département de Physique de l’ENS
- Séminaires du Laboratoire d’Hydrodynamique de l’X
- Séminaire de Mécanique d’Orsay (page web FAST)
- Séminaire de Mécanique d’Orsay (page web LIMSI)
- Séminaire de Mécanique des Fluides de l’Institut Jean le Rond d’Alembert
- Séminaires du laboratoire MSC, Paris VII
- Séminaires Gulliver
Link to cofee seminar (internal, every Thursday)
