Transmission probability of gas molecules through porous layers at Knudsen diffusion

• Published in: Journal of engineering mathematics Vol. 144; no. 1; p. 2
• Main Authors: Macher, Wolfgang, Skorov, Yuri, Kargl, Günter, Laddha, Sunny, Zivithal, Stephan
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer Netherlands 01.02.2024; Springer Nature B.V
• Subjects: Applications of Mathematics; Comets; Computational Mathematics and Numerical Analysis; Diffusion coefficient; Diffusion layers; Fuel cells; Gas flow; Grain size; Mathematical and Computational Engineering; Mathematical Modeling and Industrial Mathematics; Mathematical models; Mathematics; Mathematics and Statistics; Outgassing; Parameters; Percolation; Pore size; Pore size distribution; Porosity; Porous materials; Porous media; Shale gas; Statistical analysis; Theoretical and Applied Mechanics; Thickness; Porous media; 76P99; 76S99; 60J60; Knudsen diffusion; Rarified gas flow; Monte Carlo simulation; 76R50

Gas flow through layers of porous materials plays a crucial role in technical applications, geology, petrochemistry, and space sciences (e.g., fuel cells, catalysis, shale gas production, and outgassing of volatiles from comets). In many applications the Knudsen regime is predominant, where the pore...