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Particle simulation and flow sequence on drainage of liquid particles

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dc.citedby7
dc.contributor.authorNg K.C.en_US
dc.contributor.authorNg Y.L.en_US
dc.contributor.authorLam W.H.en_US
dc.contributor.authorid55310814500en_US
dc.contributor.authorid55812479000en_US
dc.contributor.authorid23028104400en_US
dc.date.accessioned2023-12-29T07:44:07Z
dc.date.available2023-12-29T07:44:07Z
dc.date.issued2013
dc.description.abstractThe emptying efficiency/depletion ratio firstly proposed by Hanin (1999) [7] has proven analytically that tanks with cross-sectional area expressed in the form of a higher-order polynomial of the liquid head (denoted as higher-order tank in this paper) are effective in reducing the efflux time. In this study, a Lagrangian particle method (moving particle semi-implicit (MPS) method) is used to simulate the draining process of water particles in tanks of various geometries (n-order tank), mainly to improve the physical understanding on why higher-order tanks are more effective in draining water particles. Analytically, it is shown that the reduction in efflux time is associated with the decrease of J-factor introduced in this paper. It can be proven that there exists a theoretical minimum of the J-factor (hence the efflux time) as the order (n) approaches infinity. In cases where the deformation of the free surface is mild while draining, the predicted time evolution of the water head agrees quite well with that of Torricelli's law. Generally, the simulated averaged discharge coefficient increases with the order of the shape function used to describe the cross-sectional area of the tank, which may explain the effectiveness of higher-order tanks. From the Lagrangian particle simulation, the use of the flow sequence technique has revealed that water particles with identical range of drainage time form an inverted U-band (draining layer) in lower-order tanks. Interestingly, as the order (n) increases, flattening of such draining layers is observed and this has led to a reduction of efflux time of water particles especially for those near the side-walls. � 2013 Elsevier Ltd. All rights reserved.en_US
dc.description.natureFinalen_US
dc.identifier.doi10.1016/j.camwa.2013.08.018
dc.identifier.epage1451
dc.identifier.issue8
dc.identifier.scopus2-s2.0-84884593480
dc.identifier.spage1437
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84884593480&doi=10.1016%2fj.camwa.2013.08.018&partnerID=40&md5=66c355f69e2bafc61fb8b6b0b49ab9a5
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/30036
dc.identifier.volume66
dc.pagecount14
dc.relation.ispartofAll Open Access; Bronze Open Access
dc.sourceScopus
dc.sourcetitleComputers and Mathematics with Applications
dc.subjectComputational fluid dynamics (CFD) Torricelli's law
dc.subjectEfflux time
dc.subjectMoving particle semi-implicit (MPS) method
dc.subjectParticle method
dc.subjectComputational fluid dynamics
dc.subjectLagrange multipliers
dc.subjectLiquids
dc.subjectDischarge coefficients
dc.subjectEfflux time
dc.subjectHigher-order polynomials
dc.subjectLagrangian particle method
dc.subjectLagrangian particles
dc.subjectMoving particle semiimplicit method
dc.subjectParticle methods
dc.subjectParticle simulations
dc.subjectWater tanks
dc.titleParticle simulation and flow sequence on drainage of liquid particlesen_US
dc.typeArticleen_US
dspace.entity.typePublication
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