Article (Scientific journals)
Meshfree one-fluid modeling of liquid–vapor phase transitions
SUCHDE, Pratik; Kraus, Heinrich; Bock-Marbach, Benjamin et al.
2024In Computers and Fluids, 273, p. 106211
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Keywords :
CFD; Meshfree; Metal cutting; Phase change; Vaporization; Volume expansion; Free surfaces; Liquid- and vapor phase; Liquid-vapor phase transitions; Meshfree collocation; Monolithic approach; One-fluid approach; One-fluid model; Phase Change; Computer Science (all); Engineering (all)
Abstract :
[en] We introduce a meshfree collocation framework to model the phase change from liquid to vapor at or above the boiling point. While typical vaporization or boiling simulations focus on the vaporization from the bulk of the fluid, here we include the possibility of vaporization from the free surface, when a moving fluid comes into contact with a superheated surface. We present a continuum, one-fluid approach in which the liquid and vapor phases are modeled with the same constitutive equations, with different material properties. The novelty here is a monolithic approach without explicit modeling of the interface between the phases, neither in a sharp nor diffuse sense. Furthermore, no interface boundary conditions or source terms are needed between the liquid and vapor phases. Instead, the phase transition is modeled only using material properties varying with temperature. Towards this end, we also present an enrichment of strong form meshfree generalized finite difference methods (GFDM) to accurately capture derivatives in the presence of jumps in density, viscosity, and other physical properties. The numerical results show a good agreement with experimental results, and highlight the ability of our proposed framework to model phase changes with large jumps.
Disciplines :
Mechanical engineering
Engineering, computing & technology: Multidisciplinary, general & others
Mathematics
Author, co-author :
SUCHDE, Pratik  ;  University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE) ; Fraunhofer ITWM, Kaiserslautern, Germany
Kraus, Heinrich;  Fraunhofer ITWM, Kaiserslautern, Germany ; Institut für Mathematik, Universität Kassel, Kassel, Germany
Bock-Marbach, Benjamin ;  Fraunhofer ITWM, Kaiserslautern, Germany
Kuhnert, Jörg;  Fraunhofer ITWM, Kaiserslautern, Germany
External co-authors :
yes
Language :
English
Title :
Meshfree one-fluid modeling of liquid–vapor phase transitions
Publication date :
15 April 2024
Journal title :
Computers and Fluids
ISSN :
0045-7930
eISSN :
1879-0747
Publisher :
Elsevier Ltd
Volume :
273
Pages :
106211
Peer reviewed :
Peer Reviewed verified by ORBi
Focus Area :
Computational Sciences
European Projects :
H2020 - 892761 - SURFING - Flow on thin fluid sheets
Funders :
Horizon 2020 MSCA
Horizon 2020 Framework Programme
Horizon 2020
DFG
Union Européenne
Funding text :
All the authors would like to acknowledge support from the Deutsche Forschungsgemeinschaft (DFG) under the priority program SPP 2231 “FLUSIMPRO”, project number 439626733. Pratik Suchde would also like to acknowledge partial support from the European Union's Horizon 2020 research and innovation program under the Marie Skłodowska-Curie Actions grant agreement No. 892761 “SURFING”. The authors would like to thank one of the anonymous reviewers for their insights on LBM based mesoscopic approaches to phase change modeling.All the authors would like to acknowledge support from the Deutsche Forschungsgemeinschaft (DFG) under the priority program SPP 2231 “FLUSIMPRO”, project number 439626733 . Pratik Suchde would also like to acknowledge partial support from the European Union’s Horizon 2020 research and innovation program under the Marie Skłodowska-Curie Actions grant agreement No. 892761 “SURFING”. The authors would like to thank one of the anonymous reviewers for their insights on LBM based mesoscopic approaches to phase change modeling.
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