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Refined energy-conserving dissipative particle dynamics model with temperature-dependent properties and its application in solidification problem

Energy conservation; Phase interfaces; Prandtl number; Solidification; Constant temperature; Dissipative particle dynamics; Dissipative particle dynamics model; High thermal conductivity; Solid-liquid interfaces; Temperature dependent; Temperature-dependent properties; Two-dimensional solidification...

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Main Authors: Ng K.C., Sheu T.W.H.
Other Authors: 55310814500
Format: Article
Published: American Physical Society 2023
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spelling my.uniten.dspace-230982023-05-29T14:37:45Z Refined energy-conserving dissipative particle dynamics model with temperature-dependent properties and its application in solidification problem Ng K.C. Sheu T.W.H. 55310814500 13302578200 Energy conservation; Phase interfaces; Prandtl number; Solidification; Constant temperature; Dissipative particle dynamics; Dissipative particle dynamics model; High thermal conductivity; Solid-liquid interfaces; Temperature dependent; Temperature-dependent properties; Two-dimensional solidification; Thermal conductivity; article; thermal conductivity It has been observed previously that the physical behaviors of Schmidt number (Sc) and Prandtl number (Pr) of an energy-conserving dissipative particle dynamics (eDPD) fluid can be reproduced by the temperature-dependent weight function appearing in the dissipative force term. In this paper, we proposed a simple and systematic method to develop the temperature-dependent weight function in order to better reproduce the physical fluid properties. The method was then used to study a variety of phase-change problems involving solidification. The concept of the "mushy" eDPD particle was introduced in order to better capture the temperature profile in the vicinity of the solid-liquid interface, particularly for the case involving high thermal conductivity ratio. Meanwhile, a way to implement the constant temperature boundary condition at the wall was presented. The numerical solutions of one- and two-dimensional solidification problems were then compared with the analytical solutions and/or experimental results and the agreements were promising. � 2017 American Physical Society. Final 2023-05-29T06:37:45Z 2023-05-29T06:37:45Z 2017 Article 10.1103/PhysRevE.96.043302 2-s2.0-85031040483 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85031040483&doi=10.1103%2fPhysRevE.96.043302&partnerID=40&md5=f8875c2b2c23dc3534c6e95743375fff https://irepository.uniten.edu.my/handle/123456789/23098 96 4 43302 American Physical Society Scopus
institution Universiti Tenaga Nasional
building UNITEN Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Tenaga Nasional
content_source UNITEN Institutional Repository
url_provider http://dspace.uniten.edu.my/
description Energy conservation; Phase interfaces; Prandtl number; Solidification; Constant temperature; Dissipative particle dynamics; Dissipative particle dynamics model; High thermal conductivity; Solid-liquid interfaces; Temperature dependent; Temperature-dependent properties; Two-dimensional solidification; Thermal conductivity; article; thermal conductivity
author2 55310814500
author_facet 55310814500
Ng K.C.
Sheu T.W.H.
format Article
author Ng K.C.
Sheu T.W.H.
spellingShingle Ng K.C.
Sheu T.W.H.
Refined energy-conserving dissipative particle dynamics model with temperature-dependent properties and its application in solidification problem
author_sort Ng K.C.
title Refined energy-conserving dissipative particle dynamics model with temperature-dependent properties and its application in solidification problem
title_short Refined energy-conserving dissipative particle dynamics model with temperature-dependent properties and its application in solidification problem
title_full Refined energy-conserving dissipative particle dynamics model with temperature-dependent properties and its application in solidification problem
title_fullStr Refined energy-conserving dissipative particle dynamics model with temperature-dependent properties and its application in solidification problem
title_full_unstemmed Refined energy-conserving dissipative particle dynamics model with temperature-dependent properties and its application in solidification problem
title_sort refined energy-conserving dissipative particle dynamics model with temperature-dependent properties and its application in solidification problem
publisher American Physical Society
publishDate 2023
_version_ 1806426171726888960
score 13.214268

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