IMECH-IR  > 流固耦合系统力学重点实验室
A reduction-consistent phase field model for non-isothermal multiphase flows of N immiscible incompressible fluids
Xiao, Yao; Zeng, Zhong; Zhang, Liangqi; Wang JZ(王静竹); Wang YW(王一伟); Huang CG(黄晨光)
Corresponding AuthorZeng, Zhong([email protected]) ; Zhang, Liangqi([email protected])
Source PublicationINTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
2024-08-15
Volume228Pages:27
ISSN0017-9310
AbstractIn this study, we developed a reduction-consistent phase field model for non-isothermal incompressible N-phase flows. The model is based on the high-order spectral element method. To account for thermocapillary effects, we reformulated the continuum surface force model specifically for N-phase flows. In order to enhance computational efficiency, time-independent coefficient matrices for all variables involved were reconstructed, and an unsymmetrized multifrontal LU factorization was employed to solve the linear algebraic equations, which is derived by discretization. To verify the model effectiveness in calculating surface tension and describing threephase interfacial dynamics, we conducted several experiments, including the stationary two-droplet example, the three-phase droplet spreading, and the equilibrium morphology of double emulsion droplet. Through these experiments, both the reduction-consistency and robustness of our model were demonstrated. Moreover, we validated the proposed model's applicability to non-isothermal three-phase flows by investigating the thermocapillary migration of single droplet and two droplets of different phases. Notably, we explored the thermocapillary migration of three-phase double droplets, focusing particularly on how the encapsulation process affects overall thermocapillary motion. Our findings indicate that the interaction between the two vortices near the interfaces of the two droplets strongly influences their migration behavior.
KeywordThermocapillary flow N -phase flows Phase field method Spectral element method
DOI10.1016/j.ijheatmasstransfer.2024.125657
Indexed BySCI ; EI
Language英语
WOS IDWOS:001240704300001
WOS KeywordTENSION FORCE FORMULATION ; DIFFUSE-INTERFACE METHOD ; BOLTZMANN FLUX SOLVER ; 2-PHASE FLOWS ; BENCHMARK COMPUTATIONS ; EMULSION DROPLETS ; ALLEN-CAHN ; ALGORITHM ; SIMULATION ; GENERATION
WOS Research AreaThermodynamics ; Engineering ; Mechanics
WOS SubjectThermodynamics ; Engineering, Mechanical ; Mechanics
Funding ProjectNational Natural Science Foundation of China[12172070] ; National Natural Science Foundation of China[12102071] ; Chongqing Doctoral Through Train Program[CSTB2022BSXM-JCX0086]
Funding OrganizationNational Natural Science Foundation of China ; Chongqing Doctoral Through Train Program
Classification一类
Ranking3+
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/95676
Collection流固耦合系统力学重点实验室
Recommended Citation
GB/T 7714
Xiao, Yao,Zeng, Zhong,Zhang, Liangqi,et al. A reduction-consistent phase field model for non-isothermal multiphase flows of N immiscible incompressible fluids[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,2024,228:27.
APA Xiao, Yao,Zeng, Zhong,Zhang, Liangqi,王静竹,王一伟,&黄晨光.(2024).A reduction-consistent phase field model for non-isothermal multiphase flows of N immiscible incompressible fluids.INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,228,27.
MLA Xiao, Yao,et al."A reduction-consistent phase field model for non-isothermal multiphase flows of N immiscible incompressible fluids".INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 228(2024):27.
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