We investigated the dynamics of solar granulation, using the neutral iron line [lambda] [приблизно дорівнює] 639.3 nm profiles from high-spatial resolution observations around the centre of the solar disc, in the non-perturbed region. We reproduced spatio-temporal variations of kinematic and thermodynamic parameters of solar convection at different heights of the solar photosphere (h = - 25..550 km). The acoustic waves were removed by k - [omega] filtration. We analysed the temporal changes of these variations within convective cells.