Overview of the calculated models, showing the dependence on Δφ_s, Δφ_p and Δφ_tot. Each square represents one model, and the colours indicate physical properties. The red squares are models that did not converge (see Sect. 2.1.2). Upper left: β, the fraction of momentum available from the luminosity that has gone into driving the wind. Upper right: final radius of the dust grains. Lower left: Log of the mass-loss rate. Lower right: wind velocity of the models.