Radial velocity and number density at Earth vs. time for the realistic solar wind (i.e., based on the boundary conditions) determined from the photospheric magnetogram and the semi-empirical WSA-like coronal model of EUHFORIA. Five cases are shown: the four simulations with different spatial resolutions on the radially stretched grid and the middle resolution non-stretched (equidistant) case. Results for low, middle, high, and ultra-high grid resolutions are given in yellow, orange, blue, and purple, respectively. The red dashed curve shows middle resolution non-stretched simulation results. The x-axis corresponds to the days passed since the end of the relaxation phase (14 days into the simulation).