{"title":"瞬态湍流混合物中标量波动的直方图","authors":"Emmanuel Villermaux, Claudia Innocenti, Jérôme Duplat","doi":"10.1016/S1251-8069(97)86948-5","DOIUrl":null,"url":null,"abstract":"<div><p>The concentration fluctuation PDF resulting from the transient turbulent mixing of a scalar blob exhibits rapidly a decreasing exponential shape, parametrised by a mixing time <em>t</em><sub>s</sub> = 0.12 d/u ln(5Sc) which depends on the injection time of the blob in the medium d/u and on the Schmidt number Sc.</p></div>","PeriodicalId":100304,"journal":{"name":"Comptes Rendus de l'Académie des Sciences - Series IIB - Mechanics-Physics-Chemistry-Astronomy","volume":"326 1","pages":"Pages 21-26"},"PeriodicalIF":0.0000,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1251-8069(97)86948-5","citationCount":"9","resultStr":"{\"title\":\"Histogramme des fluctuations scalaires dans le mélange turbulent transitoire\",\"authors\":\"Emmanuel Villermaux, Claudia Innocenti, Jérôme Duplat\",\"doi\":\"10.1016/S1251-8069(97)86948-5\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The concentration fluctuation PDF resulting from the transient turbulent mixing of a scalar blob exhibits rapidly a decreasing exponential shape, parametrised by a mixing time <em>t</em><sub>s</sub> = 0.12 d/u ln(5Sc) which depends on the injection time of the blob in the medium d/u and on the Schmidt number Sc.</p></div>\",\"PeriodicalId\":100304,\"journal\":{\"name\":\"Comptes Rendus de l'Académie des Sciences - Series IIB - Mechanics-Physics-Chemistry-Astronomy\",\"volume\":\"326 1\",\"pages\":\"Pages 21-26\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1998-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/S1251-8069(97)86948-5\",\"citationCount\":\"9\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Comptes Rendus de l'Académie des Sciences - Series IIB - Mechanics-Physics-Chemistry-Astronomy\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1251806997869485\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Comptes Rendus de l'Académie des Sciences - Series IIB - Mechanics-Physics-Chemistry-Astronomy","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1251806997869485","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Histogramme des fluctuations scalaires dans le mélange turbulent transitoire
The concentration fluctuation PDF resulting from the transient turbulent mixing of a scalar blob exhibits rapidly a decreasing exponential shape, parametrised by a mixing time ts = 0.12 d/u ln(5Sc) which depends on the injection time of the blob in the medium d/u and on the Schmidt number Sc.
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