"Upper box volume, m3";106 "Lower box volume, m3";1.0 "Upper box height, m";10.0 "Bond flow cross section, m2";0.1 "Characteristic bond length, m";1.0 "Hydraulic resistance coefficient, m/s";0.5 "Initial gas density, kg/m3";1.0 "Temperature, K";333 "Gas molecular mass, kg/mol";0.028