According to the characteristics of the falling film absorption in the absorbers employed on boats

a physical and mathematical model of momentum

heat and mass transfer of falling film absorption in a swaying tube with TFE/NMP solution was established. The model takes into account the effects of swaying accessional inertia forces on the distributions of film thickness

velocity

temperature

and concentration of falling film. A combination of integral and completely implicit finite volume method was adopted to solve the governing equations. By analyzing the computational results

it is shown that the distributions of the parameters inside the falling film

such as velocity

temperature

and concentration

take on the traits of periodicity and symmetry due to the existence of the swaying accessional inertia forces in the process of the falling film absorption under a swaying status using TFE/NMP as working fluid.