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UID:0-328@aerospace.technion.ac.il

DTSTART;TZID=Asia/Jerusalem:20190821T163000

DTEND;TZID=Asia/Jerusalem:20190821T173000

DTSTAMP:20230527T132409Z

URL:https://aerospace.technion.ac.il/events/study-of-the-physical-feasibil
 ity-and-stability-of-the-chapman-jouget-points-in-a-homogeneous-combustibl
 e-mixture/

SUMMARY:Study of the Physical Feasibility and Stability of the Chapman-Joug
 et Points in a Homogeneous Combustible Mixture
DESCRIPTION:Lecturer:Irena Moshkovich Makarenko\n Faculty:Department of Aer
 ospace Engineering\n Institute:Technion – Israel Institute of Technology
 \n Location:Classroom 165\, ground floor\, Library\, Aerospace Eng.\n Zoom
 : \n Abstract: \n Details: \n The progress of a homogenous combustible mix
 ture wave can occur within two discreet combustion regimes\, deflagration 
 and detonation. According to the literature\, it seems that there is no co
 nsent about the numerical value of those velocities\, although the experim
 ental conditions are the same. If we look at a burning wave (with SSSF con
 ditions)\, in horizontal channel\, we will find that the velocity of the m
 ixture that should enter the channel in order to keep the wave stable\, is
  not univalent. The range of the conservation equations solutions is a col
 lection of intersection points between the Raliegh and Hugoniot curves. Ac
 cording to the classical literature\, Chapman-Jouget suggested that the ta
 ngent point of those two curves determines the burning velocity in detonat
 ion and deflagration conditions.\nThis study examines theoretically all of
  those solutions\, using criteria such as thermodynamic stability\, mass a
 nd heat transfer and entropy growth. Trying to give a physical explanation
  to the great difference between the deflagration velocity determined by C
 hapman-Jouget and the burning velocity that was found experimentally. The 
 mathematical solution proposed at this study\, is based on the Onsager the
 ory\, which links between the entropy growths phenomena.
CATEGORIES:Seminars
LOCATION:Classroom 165\, ground floor\, Library\, Aerospace Eng.

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DTSTART:20190329T030000

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