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 Author | Zeng, Zhong([email protected]) ; Zhang, Liangqi([email protected]) |
Source Publication | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER |
2024-08-15 | |
Volume | 228Pages:27 |
ISSN | 0017-9310 |
Abstract | In 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. |
Keyword | Thermocapillary flow N -phase flows Phase field method Spectral element method |
DOI | 10.1016/j.ijheatmasstransfer.2024.125657 |
Indexed By | SCI ; EI |
Language | 英语 |
WOS ID | WOS:001240704300001 |
WOS Keyword | TENSION FORCE FORMULATION ; DIFFUSE-INTERFACE METHOD ; BOLTZMANN FLUX SOLVER ; 2-PHASE FLOWS ; BENCHMARK COMPUTATIONS ; EMULSION DROPLETS ; ALLEN-CAHN ; ALGORITHM ; SIMULATION ; GENERATION |
WOS Research Area | Thermodynamics ; Engineering ; Mechanics |
WOS Subject | Thermodynamics ; Engineering, Mechanical ; Mechanics |
Funding Project | National Natural Science Foundation of China[12172070] ; National Natural Science Foundation of China[12102071] ; Chongqing Doctoral Through Train Program[CSTB2022BSXM-JCX0086] |
Funding Organization | National Natural Science Foundation of China ; Chongqing Doctoral Through Train Program |
Classification | 一类 |
Ranking | 3+ |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://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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