Ng, K.C.K.C.NgSheu, T.W.H.T.W.H.SheuTONY W. H. SHEU2020-01-172020-01-172017https://scholars.lib.ntu.edu.tw/handle/123456789/451655It 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.[SDGs]SDG7Energy 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 conductivityjournal article10.1103/PhysRevE.96.0433022-s2.0-85031040483https://www.scopus.com/inward/record.uri?eid=2-s2.0-85031040483&doi=10.1103%2fPhysRevE.96.043302&partnerID=40&md5=f8875c2b2c23dc3534c6e95743375fff