Wind-cloud interaction: evolution of the surviving fraction of the cloud for the three calculated models. Even though a small remnant of the cloud is still present at t/t_KH ≃ 4 the calculation W₁ (SPHYNX with the new VE, that is, p = 1) leads to the best results. The other two calculations (SPHYNX with standard VE, i.e. p = 0, and GADGET with standard VE and without IAD₀) are more inefficient in diluting the cloud as between 40–60% of it is still present even at t/t_KH> 4.