Lattice Boltzmann modeling of interfacial mass transfer in a multiphase system

Pore-scale study of the multiphase methane hydrate dissociation dynamics and mechanisms in the sediment

“…for accurate hydrate recovery forecast at the various dissociation conditions. Some discussions on the modeling of heat transfer and multiphase mass transfer in the REVscaled simulation have been reported in our previous studies [24,49]. What should be mentioned here is the regime boundaries of the Pe number and initial water saturation may vary from the sediment structure, the grain wettability, and the hydrate pore habit, which still need more investigation in future work.…”

“…The numerical implementations of the LB models are introduced briefly in this section. More details can be found in the previous work [24,49].…”

“…When simulating the mass transfer process in the multiphase system, the interfacial species transport enforced by Henry's law should be handled with care. In this work, the CST (Continuum Species Transfer)-LB model [49] with D2Q5 scheme (the discrete velocity vectors in the diagonal directions are abandoned without accuracy loss [54]) is used to describe the interfacial transport of methane molecules as…”

“…Figure 3 shows the numerical procedure to simulate the reactive transport and thermal process during the methane hydrate dissociation. The numerical implementations were in-house developed with C++ language, and the validation of the numerical models has been carefully conducted [24,49].…”

Upscaling methane hydrate dissociation kinetic model during depressurisation

“…The numerical models are briefly introduced in this section, including multiphase flow, interfacial mass transport, conjugate heat transport, and heterogeneous dissociation reaction with structure evolution. More details and validations of the models can be found in our previous work (Yang et al, 2022a;Yang et al, 2021a).…”