Below is a simulation of a pipe or tubular flow reactor. The reactor is simulated by a series of mixing cells, which is a common way of simulating axial dispersion in this type of reactor. Move the cursor over the reactor to see the number of cells. As the number of cells approaches infinity, the behavior approaches that of a plug flow reactor (PFR). By pausing the reaction and/or the entire simulation, you can set up various initial conditions. The feed concentration of reactant A is fixed at 1 mol/m3 and the reactor volume is fixed at 10 m3.