{"title":"About frequency coupling between riser and plenum in a gas fluidized bed","authors":"Christophe Sierra, Lounès Tadrist","doi":"10.1016/S1287-4620(00)00128-9","DOIUrl":null,"url":null,"abstract":"<div><p>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 depending on the bed and air distributor design but also on the flow characteristics, we have developped a simple model associated to an experiment presented hereunder.</p></div>","PeriodicalId":100303,"journal":{"name":"Comptes Rendus de l'Académie des Sciences - Series IIB - Mechanics-Physics-Astronomy","volume":"328 4","pages":"Pages 323-328"},"PeriodicalIF":0.0000,"publicationDate":"2000-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1287-4620(00)00128-9","citationCount":"9","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Comptes Rendus de l'Académie des Sciences - Series IIB - Mechanics-Physics-Astronomy","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1287462000001289","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 9
Abstract
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 depending on the bed and air distributor design but also on the flow characteristics, we have developped a simple model associated to an experiment presented hereunder.
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