Towards a more realistic modeling of solid foam: Use of the pentagonal dodecahedron geometry

β-SiC alveolar foams as a structured photocatalytic support for the gas phase photocatalytic degradation of methylethylketone

“…A recent model developed for ␤-SiC foams by Edouard based on the packing of regular pentagonal dodecahedron (Fig. 1A), revealed to be quite close to the real structure of a unit cell of solid foam [12].…”

“…The geometrical specific surface area of the foams, derived from the open porosity and the mean strut diameter according to the model developed by Edouard and co-workers [10,12,52], was ranging from 620 ± 200 m −1 for 5400 m mean cell size to 4250 ± 700 m −1 for 2900 m mean cell size. The main characteristic parameters of the ␤-SiC foams are reported in Table 1.…”

Microtomography-based numerical simulations of heat transfer and fluid flow through β -SiC open-cell foams for catalysis

“…Therefore, unit cells such as regular pentagonal dodecahedra [27,28], Kelvin cells (the tetrakaidecahedron geometry) [29][30][31], diamond structures [31] and other idealised geometrical cells [32,33] were proposed for pore-scale investigation of the general effects in idealised foam structures based on unit cells, e.g., modelling mass transfer [27], heat transfer [28] and hydrodynamics within foam-based geometries [29][30][31][32][33]. Simulation works based on abstracted foam models are convenient to extract basic characteristics, in the hope of resembling the ones of real foam structures, for designing applications based on foams.…”

Evaluation of the use of ceramic foams as catalyst supports for reverse-flow combustors

“…As indicated in Figure 1, the basic geometrical properties of foams are: cell size ( ), pore size (a) and strut thickness (d S ). Using these basic geometries, and a suitable cell model [29], other geometrical foam properties, such as cell density (ppi), porosity ( b ) or specific external surface area (S v ), can be derived. The values shown in Table 1 are the average measured for 12 different cells of the foam.…”

“…methane inlet concentration (measured in terms of adiabatic temperature rise, 50-150ºC, equivalent to 1800 to 5420 ppm), switching time (50-900 s) and total gas flow rate (15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30) L/min n.t.p.). Experiments have been carried out in the adiabatic bench-scale unit described in the methodology section.…”