  We examine the gravity-induced flow of dry and cohesionless granular media
through an outlet placed eccentrically in a planar silo, employing computations
based on a soft-sphere discrete element method. The vertical velocity profiles,
measured at the outlet, are self-similar when the eccentricity is given in
terms of the gap ($s$) between the wall and the corner of the outlet nearest to
the wall. On the other hand, the self-similarity of vertical velocity does not
always hold for all eccentricities ($e$) given by the distance between the
centers of an outlet and the silo base, which is a typical metric of
eccentricity. Similar observations are noted for the profiles of solid
fraction. For the former measure of eccentricity, the flow conditions are
observed to be similar for different outlet sizes. In contrast, we observe, the
latter leads to differing flow patterns for the highest eccentricity wherein
the largest outlet touches the sidewall and the rest are located at a distance.
This study establishes the importance of $s$ compared to $e$ from the viewpoint
of the self-similarity of the vertical velocity and solid fraction profiles at
the outlet, and generalizes the notion of the scaling of velocity and solid
fraction reported by Janda et al. [Phys. Rev. Lett. 108, 248001 (2012)] in a
silo with a centric exit to the one with eccentric granular discharge.
