p_amb 1.013e5[Pa] Ambient pressure p_inlet 50[Pa] Gauge pressure, inlet p_outlet 0[Pa] Gauge pressure, outlet T_inlet 550[K] Inlet temperature T0 T_inlet Initial temperature Rg 8.314[J/(mol*K)] Gas constant M_gas 29[g/mol] Molar mass, gas k_l 1e-2[m^2/(Pa*s)] Lumped friction factor ani 1e-12 Anisotropy convergence factor k_gas 0.025[W/(m*K)] Thermal conductivity, gas Cp_gas 1.2[kJ/(kg*K)] Heat capacity, gas k_m 50[W/(m*K)] Thermal conductivity, membrane ani_m 0.5 Tortuosity factor, monolith yz-plane rho_m 4e3[kg/m^3] Density, membrane Cp_m 2[kJ/(kg*K)] Heat capacity, membrane d_m 200[um] Membrane thickness kappa_m 1e-12[m^2] Permeability, membrane H 500[um] Channel height eta 3e-5[Pa*s] Viscosity, gas a 4*kappa_m/(H*d_m*eta) Membrane transport coefficient T_amb 300[K] Ambient temperature ht_fa 200[W/(m^2*K)] Heat transfer coefficient, filter/ambient ht_fg 1500[W/(m^2*K)] Heat transfer coefficient, filter/gas D_s 1e-5[m^2/s] Diffusion coefficient, soot d_s0 25[um] Initial soot-layer thickness c_s0 5[mmol/m^3] Initial soot concentration kappa_s 1e-13[m^2] Permeability, soot layer rho_s 2e3[kg/m^3] Density, soot layer M_s 12[g/mol] Molar mass, soot D_o2 1e-5[m^2/s] Diffusion coefficient, O2 c_o2_in 0.08*p_amb/(Rg*T_inlet) Concentration of O2 at inlet H_ox 30[kJ/mol] Reaction enthalpy D_sl 1e-8[m^2/s] Diffusion coefficient, soot layer