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Accueil du site > Évènements > Séminaires > Séminaires IRPHE > Archives IRPHE > 2019

Jeudi 21 Novembre 2019 / IRPHE

publié le

Séminaire exceptionnel IRPHE

Flame acceleration and mechanisms of deflagration to detonation transition

Orateur : Mikhail Liberman
Nordic Institute for Theoretical Physics (NORDITA) Stockholm University and Royal Institute of Technology

Abstract : Almost 150 years have passed since the first observation of the transition from deflagration to detonation (DDT) by E. Mallard and H. Le Chatelier in 1883. Since then, significant efforts (experimental, theoretical and simulations) have been devoted in attempts to understand the nature and mechanism of DDT. Still there is no generally accepted understanding of the flame acceleration mechanisms and eventually there is no consensus about the mechanism of DDT. A large diversity of the experimental details usually clouds the actual sequence of events and the basic processes leading to the transition to detonation. I shall talk about what are possible combustion modes from a pure theoretical point of view. What are possible mechanisms that can be responsible for the DDT and what is similarity and difference between them. What is role of chemical kinetics and heat losses to the walls in simulations of DDT.

Date et lieu : jeudi 21 novembre 2019 à 10h dans la salle de séminaire IRPHE

Voir en ligne : la page personnelle de l’orateur