In Silico Study of 2D Bubble Growth by Solute Diffusion in Correlated Porous Media: The Effects of Bond Number, Jakob Number, Pressure Decline Rate, and Wettability

DOMINGUEZ, A.; RODRIGUEZ, C.M.; FELIPE, C.; VIDALES, A M; KORNHAUSER, ISAAC; ROJAS, FERNANDO

New jersey, USA

Workshop; Tri/Princeton's IV International Workshop Characterization of Porous Materials: from Angstroms to Millimeters, Princeton; 2006

TRI/Princeton (Textile Research Institute/Princeton)

Simulations of bubble growth in porous media are carried out with a 2D numerical automaton built on a set of hypotheses derived from experimental observations at pore scale. Various types of 2D numerical networks (320*320, sites and bonds) are used as models of porous media with the aim to study the consequences of the spatial correlation among the porous network entities on the evolution of a gas cluster growing by diffusion inside it. The porous networks are constructed by using a variation of the dual site bond model (DSBM) framework, which allows a substrate to have an adequate geometrical and topological distribution of its pore elements. For a same pore-size distribution, the DSBM can provide simulated porous media of different topological structures. Under these scenarios, numerical simulations concerning the growth pattern and the growth rate of a single gas cluster are performed. The effects of the Bond number, Jakob number, pressure decline rate, and wettabilitty are likewise investigated.