Abstract
Foam materials produced by physical process are common in the field of material engineering such as foamed asphalt. Considering heat and phase transfer, the complicated nonlinear phenomenon of foaming and decay process is difficult to be described numerically. In this paper, a multicomponent thermal lattice Boltzmann model for simulation of physical foaming and decay process is proposed. The model combines a thermal single-component phase change model with a multicomponent model, and the two models are verified separately. The physical foaming and decay process is solved numerically based on the proposed model. Simulation results show the influence of the distribution and content of the phase-change component on the expansion rate and decay time during physical foaming and decay process.
Highlights
Physical foaming and decay process caused by bubbles generation and crushing of one component in multicomponent fluids, such as foamed asphalt foaming process [1] is widespread in material engineering and other field
2.1 Thermal single-component phase change model In lattice Boltzmann method (LBM), the fluid is described by the evolution of density distribution functions
Physical foaming and decay process caused by bubbles generation and crushing of one component in multicomponent fluids is simulated in a 200 × 150 field
Summary
Physical foaming and decay process caused by bubbles generation and crushing of one component (the phase-change component) in multicomponent fluids, such as foamed asphalt foaming process [1] is widespread in material engineering and other field. The macro dynamic behaviour of such foamflow is very complex because of the interaction between different fluids and the process of mass and heat transfer. To investigate the foam-flow, multicomponent multiphase fluids accompanied by phase change with heat transfer need to be described numerically. Conventional computational fluid dynamics (CFD) methods face difficulties in predicting such complex flow. Https://doi.org/10.10 51/matecconf /201823702003 and the influence of the distribution and content of the phase-change component on the two important indicators (expansion rate and decay time) for studying foam-flow is discussed.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
