Experimental investigations of density-induced segregation in binary granular mixtures under vertical vibrations

© Published under licence by IOP Publishing Ltd. The objective of this work is aimed to investigate experimentally the influences of density ratio on segregation of cylindrical granular mixtures under vertical vibrations. Polytetrafluoroethylene, Polyamide, Polyethylene terephthalate, Balsa woods an...

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Main Authors: Tanapon Yachai, Itthichai Preechawuttipong, Pawarut Jongchansitto
Format: Conference Proceeding
Published: 2018
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http://cmuir.cmu.ac.th/jspui/handle/6653943832/58692
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-586922018-09-05T04:31:42Z Experimental investigations of density-induced segregation in binary granular mixtures under vertical vibrations Tanapon Yachai Itthichai Preechawuttipong Pawarut Jongchansitto Engineering Materials Science © Published under licence by IOP Publishing Ltd. The objective of this work is aimed to investigate experimentally the influences of density ratio on segregation of cylindrical granular mixtures under vertical vibrations. Polytetrafluoroethylene, Polyamide, Polyethylene terephthalate, Balsa woods and Hinoki woods were used as the cylindrical particles, with 10 mm in diameter and 60 mm in length. The granular sample is composed of 1000 particles with two different materials with each type of 500 particles. All particles are periodically filled into the rectangular container with size 300 x 300 x 60 mm, as the initial condition. Density ratios are 2.73, 3.36, 5.27, and 13.63. The experimental operated by vertical shaker for 10 minute to achieve a steady state condition with same amplitude at 5 mm. The dimensionless vibration accelerations changed by frequency for 5 experimental, experiment the dimensionless vibration accelerations = 1, 2, 3, 4, and 5. The beginning state and the end state collected data by shooting the image. The segregation is considered by average height or the segregation coefficient. The result showed that for the density ratios of 2.73 and 3.36 for all dimensionless acceleration values, the segregation does not occur. On the other hand, for density ratio more than 5.27, the segregation occur by the way that the higher density particles move downward to the bottom of the sample, while the lower density particles move up to the top of the container. The segregation occurs when the dimensionless acceleration is more than 2 and the segregation is clearer when the dimensionless acceleration increases. 2018-09-05T04:28:41Z 2018-09-05T04:28:41Z 2018-02-07 Conference Proceeding 1757899X 17578981 2-s2.0-85046301509 10.1088/1757-899X/297/1/012020 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85046301509&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/58692
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
topic Engineering
Materials Science
spellingShingle Engineering
Materials Science
Tanapon Yachai
Itthichai Preechawuttipong
Pawarut Jongchansitto
Experimental investigations of density-induced segregation in binary granular mixtures under vertical vibrations
description © Published under licence by IOP Publishing Ltd. The objective of this work is aimed to investigate experimentally the influences of density ratio on segregation of cylindrical granular mixtures under vertical vibrations. Polytetrafluoroethylene, Polyamide, Polyethylene terephthalate, Balsa woods and Hinoki woods were used as the cylindrical particles, with 10 mm in diameter and 60 mm in length. The granular sample is composed of 1000 particles with two different materials with each type of 500 particles. All particles are periodically filled into the rectangular container with size 300 x 300 x 60 mm, as the initial condition. Density ratios are 2.73, 3.36, 5.27, and 13.63. The experimental operated by vertical shaker for 10 minute to achieve a steady state condition with same amplitude at 5 mm. The dimensionless vibration accelerations changed by frequency for 5 experimental, experiment the dimensionless vibration accelerations = 1, 2, 3, 4, and 5. The beginning state and the end state collected data by shooting the image. The segregation is considered by average height or the segregation coefficient. The result showed that for the density ratios of 2.73 and 3.36 for all dimensionless acceleration values, the segregation does not occur. On the other hand, for density ratio more than 5.27, the segregation occur by the way that the higher density particles move downward to the bottom of the sample, while the lower density particles move up to the top of the container. The segregation occurs when the dimensionless acceleration is more than 2 and the segregation is clearer when the dimensionless acceleration increases.
format Conference Proceeding
author Tanapon Yachai
Itthichai Preechawuttipong
Pawarut Jongchansitto
author_facet Tanapon Yachai
Itthichai Preechawuttipong
Pawarut Jongchansitto
author_sort Tanapon Yachai
title Experimental investigations of density-induced segregation in binary granular mixtures under vertical vibrations
title_short Experimental investigations of density-induced segregation in binary granular mixtures under vertical vibrations
title_full Experimental investigations of density-induced segregation in binary granular mixtures under vertical vibrations
title_fullStr Experimental investigations of density-induced segregation in binary granular mixtures under vertical vibrations
title_full_unstemmed Experimental investigations of density-induced segregation in binary granular mixtures under vertical vibrations
title_sort experimental investigations of density-induced segregation in binary granular mixtures under vertical vibrations
publishDate 2018
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85046301509&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/58692
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