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Assessment of Smoothed Particle Hydrodynamics (SPH) models for predicting wall heat transfer rate at complex boundary

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dc.citedby18
dc.contributor.authorNg K.C.en_US
dc.contributor.authorNg Y.L.en_US
dc.contributor.authorSheu T.W.H.en_US
dc.contributor.authorAlexiadis A.en_US
dc.contributor.authorid55310814500en_US
dc.contributor.authorid55812479000en_US
dc.contributor.authorid13302578200en_US
dc.contributor.authorid6602859624en_US
dc.date.accessioned2023-05-29T08:11:25Z
dc.date.available2023-05-29T08:11:25Z
dc.date.issued2020
dc.descriptionBoundary conditions; Heat transfer; Least squares approximations; Natural convection; Boundary condition treatments; Dirichlet boundary condition; Moving least squares; Numerical solution; Reasonable accuracy; Smoothed particle hydrodynamics; Unsteady natural convection; Weakly compressible; Hydrodynamicsen_US
dc.description.abstractNowadays, the use of Smoothed Particle Hydrodynamics (SPH) approach in thermo-fluid application has been starting to gain popularity. Depending on the SPH boundary condition treatment, different methods can be devised to compute the total wall heat transfer rate. In this paper, for the first time, the accuracies of using the popular dummy particle methods, i.e. (a) the Adami Approach (AA) and (b) the higher-order mirror + Moving Least Square (MMLS) method in predicting the total wall heat transfer rate are comprehensively assessed. The modified equation of the 1D wall heat transfer rate is formulated using Taylor's series. For uniform particle layout, MMLS is first-order accurate. Nevertheless, for an irregular particle layout, its order of accuracy drops to ~O(1), the order similar to that of the computationally simpler AA. The AA method is then used to simulate several steady and unsteady natural convection problems involving convex and concave wall geometries. The estimated wall heat transfer rate and the flow results agree considerably well with the available experimental data and benchmark numerical solutions. In general, the current work shows that AA can offer a practical means of estimating wall heat transfer rate at reasonable accuracy for problems involving complex geometry. � 2019 Elsevier Ltden_US
dc.description.natureFinalen_US
dc.identifier.doi10.1016/j.enganabound.2019.10.017
dc.identifier.epage205
dc.identifier.scopus2-s2.0-85075343327
dc.identifier.spage195
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85075343327&doi=10.1016%2fj.enganabound.2019.10.017&partnerID=40&md5=f1ff68f542f42085dea1e9b9bb2016d4
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/25593
dc.identifier.volume111
dc.publisherElsevier Ltden_US
dc.sourceScopus
dc.sourcetitleEngineering Analysis with Boundary Elements
dc.titleAssessment of Smoothed Particle Hydrodynamics (SPH) models for predicting wall heat transfer rate at complex boundaryen_US
dc.typeArticleen_US
dspace.entity.typePublication
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