The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
On etudie la nature de l'instabilite d'un melange binaire en milieu poreux chauffe par le bas en presence d'un ecoulement horizontal. On a evalue la reponse asymptotique du systeme a une perturbation localisee dans les deux directions du plan horizontal. Au seuil de l'instabilite absolue, la presence de l'ecoulement brise la symetrie d'invariance par rotation et le systeme selectionne, parmi une infinite...
This article deals with the explanation of pressure fluctuations coupling between riser and plenum in a gas fluidized bed. It has been noticed by former experiments that the pressure fluctuations taking place in the riser due to bubbles eruptions is also observed underneath the distributor, in the plenum (also called windbow) under certain conditions. In order to explain how effective is the coupling...