![]() ![]() Il a ensuite été utilisé pour étudier l’influence de plusieurs facteurs sur les pentes moyennes des profils finaux. Le modèle numérique a d’abord été validé contre la solution analytique d’une feuille de fluide de Bingham sur un plan plat à l’arrêt de l’écoulement. Résuméĭes simulations de la dynamique numérique des fluides (DNF) d’essais en canal de laboratoire sur des résidus épaissis ont été menées afin de mettre en évidence les facteurs susceptibles d’influencer les pentes des profils finaux obtenus dans ces canaux. The agreement between simulation results and laboratory observations in the literature gives confidence in the veracity of the computational results. These results provide a better understanding of the deposition of thickened tailings in the field. Finally, two dimensionless parameters are proposed to establish the relationship between the average slope, rheological properties, and geometrical parameters for planar deposition of thickened tailings in both sudden-release (S-R) and discharge flume tests. In addition, the viscosity tends to have less influence on the formation of the final profiles if the inertial effects are relatively weak. Moreover, the yield stress of the fluid generally has more influence on the final profiles than the viscosity. The results show that an increase of volume, energy, flume width or base angle reduces the resulting slope angle. ![]() It was then used to investigate the influence of several factors on the average slopes of the final profiles. The numerical model was first validated against the analytical solution of a sheet of Bingham fluid on a flat plane at flow stoppage. I hope I am clear with the question.Please help me to sort it out.Computational fluid dynamics (CFD) simulations of laboratory flume tests on thickened tailings were conducted to highlight the factors that may influence the slopes of final profiles achieved in such flumes. Java.io.FileNotFoundException: /var/log/flume-ng/flume.log (Permission denied)Īt java.io.FileOutputStream.openAppend(Native Method)Īt java.io.FileOutputStream.(FileOutputStream.java:192)Īt java.io.FileOutputStream.(FileOutputStream.java:116)Īt .setFile(FileAppender.java:294)Īt .setFile(RollingFileAppender.java:207)Īt .activateOptions(FileAppender.java:165)Īt .PropertySetter.activate(PropertySetter.java:307)Īt .tProperties(PropertySetter.java:172)Īt .tProperties(PropertySetter.java:104)Īt 圜onfigurator.parseAppender(Propert圜onfigurator.java:842)Īt 圜onfigurator.parseCategory(Propert圜onfigurator.java:768)Īt 圜nfigureRootCategory(Propert圜onfigurator.java:648)Īt 圜onfigurator.doConfigure(Propert圜onfigurator.java:514)Īt 圜onfigurator.doConfigure(Propert圜onfigurator.java:580)Īt .lectAndConfigure(OptionConverter.java:526)Īt .(LogManager.java:127)Īt 4jLoggerFactory.getLogger(Log4jLoggerFactory.java:73)Īt (LoggerFactory.java:242)Īt (LoggerFactory.java:254)Īt .Application.(Application.java:58) ![]() Where Documents/flume is a folder in /home/cloudera/ this folder contains the following fileĪnd I'm getting the following error: log4j:ERROR setFile(null,true) call failed. Sudo -u hdfs hadoop fs -chown flume:flume flumeLogTestĪ = tail -f Documents/flume/vmware-0.logĪ.path = hdfs://localhost.localdomain:8020/user/hdfs/flumeLogTestĪ.fileType = DataStreamĪnd I started the flume-agent by the following command : /usr/bin/flume-ng agent -conf Documents/flume -conf-file Documents/flume/nf -name agent I used the following command to create flumeLogTest folder in hdfs : sudo -u hdfs hadoop fs -mkdir flumeLogTest I am trying to read a log file from /home/cloudera/Documents/flume/ and write it to hdfs using apache flume.
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