{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1390282679545866880.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1252/jcej.39.409"}},{"identifier":{"@type":"NDL_BIB_ID","@value":"7884279"}},{"identifier":{"@type":"URI","@value":"http://id.ndl.go.jp/bib/7884279"}},{"identifier":{"@type":"URI","@value":"https://ndlsearch.ndl.go.jp/books/R000000004-I7884279"}},{"identifier":{"@type":"URI","@value":"http://www.jstage.jst.go.jp/article/jcej/39/4/39_4_409/_pdf"}},{"identifier":{"@type":"NAID","@value":"10018112500"}}],"dc:title":[{"@language":"en","@value":"Optimum Cell Condition for Contact Detection Having a Large Particle Size Ratio in the Discrete Element Method"}],"dc:language":"en","description":[{"type":"abstract","notation":[{"@language":"en","@value":"The Distinct Cell Model (DCM) for the contact detection in the algorithm of the Discrete Element Method was proposed to improve the calculation speed when particles have a large size ratio. This model has several grids, which are overlapped three-dimensionally, and the particles having different size are boxed in a suitable grid cell. The contact detection time of this model was measured and compared with that of the conventional cell model in the simulation of a rotating dram. The contact detection using the DCM was extremely faster than that of the conventional cell model; e.g. when particles had a size ratio of <I>d</I><SUB>max</SUB>/<I>d</I><SUB>min</SUB> = 15, the speed-up was about 25. The speed-up ratio increases with increasing particle size ratio, regardless of the number of grids. This model has an advantage of being able to set optimum cell sizes for all particles, thus, the number of searching cells and contact check can be minimized. The optimum cell size of the DCM is the size that each cell has about 1 particle in it when two grids are used, 0.3–0.6 particles in the case of more than three grids. The large-scale simulation of granular flow having a large particle size ratio will be possible by using the Distinct Cell Model."}],"abstractLicenseFlag":"disallow"}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1410001204569894531","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000001807760"}],"foaf:name":[{"@language":"en","@value":"Mio Hiroshi"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Core Research Center, KFPT, Keihanna Interaction Plaza Inc."},{"@language":"en","@value":"Department of Chemical Engineering and Materials Science, Doshisha University"}]},{"@id":"https://cir.nii.ac.jp/crid/1410001204565834754","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000000050421"}],"foaf:name":[{"@language":"en","@value":"Shimosaka Atsuko"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Department of Chemical Engineering and Materials Science, Doshisha University"}]},{"@id":"https://cir.nii.ac.jp/crid/1420282801211414400","@type":"Researcher","personIdentifier":[{"@type":"KAKEN_RESEARCHERS","@value":"70262459"},{"@type":"NRID","@value":"1000070262459"},{"@type":"NRID","@value":"9000002404952"},{"@type":"NRID","@value":"9000003259366"},{"@type":"NRID","@value":"9000401877656"},{"@type":"NRID","@value":"9000410503120"},{"@type":"NRID","@value":"9000258142410"},{"@type":"NRID","@value":"9000258147093"},{"@type":"NRID","@value":"9000258186263"},{"@type":"NRID","@value":"9000380478810"},{"@type":"NRID","@value":"9000401875296"},{"@type":"NRID","@value":"9000401870964"},{"@type":"NRID","@value":"9000362194047"},{"@type":"NRID","@value":"9000247071719"},{"@type":"NRID","@value":"9000347662207"},{"@type":"NRID","@value":"9000298897617"},{"@type":"NRID","@value":"9000254566597"},{"@type":"NRID","@value":"9000402241964"},{"@type":"NRID","@value":"9000391522701"},{"@type":"NRID","@value":"9000254570649"},{"@type":"NRID","@value":"9000401869454"},{"@type":"NRID","@value":"9000312267774"},{"@type":"NRID","@value":"9000247071664"},{"@type":"NRID","@value":"9000337087122"},{"@type":"NRID","@value":"9000254255538"},{"@type":"NRID","@value":"9000401680698"},{"@type":"NRID","@value":"9000401861439"},{"@type":"NRID","@value":"9000401872370"},{"@type":"NRID","@value":"9000401867996"},{"@type":"NRID","@value":"9000254568967"},{"@type":"NRID","@value":"9000254139409"},{"@type":"NRID","@value":"9000305638795"},{"@type":"NRID","@value":"9000242102166"},{"@type":"NRID","@value":"9000005724424"},{"@type":"NRID","@value":"9000001951093"},{"@type":"NRID","@value":"9000318583355"},{"@type":"NRID","@value":"9000309180818"},{"@type":"NRID","@value":"9000254565486"},{"@type":"NRID","@value":"9000401865036"},{"@type":"NRID","@value":"9000401866698"},{"@type":"NRID","@value":"9000254140174"},{"@type":"NRID","@value":"9000414374886"},{"@type":"NRID","@value":"9000401870044"},{"@type":"NRID","@value":"9000257844781"},{"@type":"NRID","@value":"9000256658191"},{"@type":"NRID","@value":"9000258739495"},{"@type":"NRID","@value":"9000006907174"},{"@type":"NRID","@value":"9000254570032"},{"@type":"NRID","@value":"9000401672205"},{"@type":"NRID","@value":"9000258185618"},{"@type":"NRID","@value":"9000401871952"},{"@type":"NRID","@value":"9000258739452"},{"@type":"NRID","@value":"9000019955217"},{"@type":"NRID","@value":"9000401864837"},{"@type":"NRID","@value":"9000401862223"},{"@type":"NRID","@value":"9000258739410"},{"@type":"NRID","@value":"9000411569158"},{"@type":"RESEARCHMAP","@value":"https://researchmap.jp/read0046534"}],"foaf:name":[{"@language":"en","@value":"Shirakawa Yoshiyuki"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Department of Chemical Engineering and Materials Science, Doshisha University"}]},{"@id":"https://cir.nii.ac.jp/crid/1410282679544269444","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000000845931"}],"foaf:name":[{"@language":"en","@value":"Hidaka Jusuke"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Department of Chemical Engineering and Materials Science, Doshisha University"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00219592"},{"@type":"EISSN","@value":"18811299"},{"@type":"NDL_BIB_ID","@value":"000000128548"},{"@type":"ISSN","@value":"00219592"},{"@type":"LISSN","@value":"00219592"},{"@type":"NCID","@value":"AA00709658"}],"prism:publicationName":[{"@language":"en","@value":"JOURNAL OF CHEMICAL ENGINEERING OF JAPAN"},{"@language":"en","@value":"J. Chem. Eng. Japan /  JCEJ"},{"@language":"en","@value":"jcej"},{"@language":"en","@value":"J. Chem. Eng. Japan"},{"@language":"en","@value":"Journal of Chemical Engineering of Japan"}],"dc:publisher":[{"@language":"en","@value":"The Society of Chemical Engineers, Japan"},{"@language":"ja","@value":"公益社団法人 化学工学会"}],"prism:publicationDate":"2006","prism:volume":"39","prism:number":"4","prism:startingPage":"409","prism:endingPage":"416"},"reviewed":"false","dcterms:accessRights":"http://purl.org/coar/access_right/c_abf2","url":[{"@id":"http://id.ndl.go.jp/bib/7884279"},{"@id":"https://ndlsearch.ndl.go.jp/books/R000000004-I7884279"},{"@id":"http://www.jstage.jst.go.jp/article/jcej/39/4/39_4_409/_pdf"}],"availableAt":"2006","foaf:topic":[{"@id":"https://cir.nii.ac.jp/all?q=Discrete%20Element%20Method","dc:title":"Discrete Element Method"},{"@id":"https://cir.nii.ac.jp/all?q=Optimum%20Cell","dc:title":"Optimum Cell"},{"@id":"https://cir.nii.ac.jp/all?q=Contact%20Detection","dc:title":"Contact Detection"},{"@id":"https://cir.nii.ac.jp/all?q=Speed-Up","dc:title":"Speed-Up"},{"@id":"https://cir.nii.ac.jp/all?q=Distinct%20Cell%20Model","dc:title":"Distinct Cell Model"}],"relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360855570104515072","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"A discrete numerical model for granular assemblies"}]},{"@id":"https://cir.nii.ac.jp/crid/1361137044290291712","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Computer simulation of bubbles in large-particle fluidized beds"}]},{"@id":"https://cir.nii.ac.jp/crid/1362825894922381312","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"The influence of DEM simulation parameters on the particle behaviour in a V-mixer"}]},{"@id":"https://cir.nii.ac.jp/crid/1363107369516458880","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"DEM modelling of industrial granular flows: 3D case studies and the effect of particle shape on hopper discharge"}]},{"@id":"https://cir.nii.ac.jp/crid/1364233268609730176","@type":"Article","relationType":["references","cites"],"jpcoar:relatedTitle":[{"@value":"Studies in Molecular Dynamics. 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Mixing Behavior in Electrophotographic System by Using Parallel Discrete Element Method"},{"@language":"ja","@value":"並列化ＤＥＭによる電子写真システム内粒子攪拌挙動に及ぼすパドル回転速度の影響"},{"@language":"ja-Kana","@value":"ヘイレツカ DEM ニ ヨル デンシ シャシン システム ナイ リュウシ カクハン キョドウ ニ オヨボス パドル カイテン ソクド ノ エイキョウ"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282679488099712","@type":"Article","relationType":["isReferencedBy","isCitedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"DEM Simulation for Irregular Particles using the Equivalent Rolling Friction Coefficient"},{"@language":"ja","@value":"等価転がり摩擦係数を用いた不規則な形状粒子群に対するＤＥＭシミュレーション"},{"@language":"ja-Kana","@value":"トウカ コロガリ マサツ ケイスウ オ モチイタ フキソク ナ ケイジョウ リュウシグン ニ タイスル DEM シミュレーション"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282679544269440","@type":"Article","relationType":["isReferencedBy","isCitedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Analysis of Developing Behavior in Two-Component Development System by Large-Scale Discrete Element 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