  In this paper, we consider steady Euler flows in a planar bounded domain in
which the vorticity is sharply concentrated in a finite number of disjoint
regions of small diameter. Such flows are closely related to the point vortex
model and can be regarded as desingularization of point vortices. By an
adaption of the vorticity method, we construct a family of steady Euler flows
in which the vorticity is concentrated near a global minimum point of the Robin
function of the domain, and the corresponding stream function satisfies a
semilinear elliptic equation with a given profile function. Furthermore, for
any given isolated minimum point $(\bar{x}_1,\cdot\cdot\cdot,\bar{x}_k)$ of the
Kirchhoff-Routh function of the domain, we prove that there exists a family of
steady Euler flows whose vorticity is supported in $k$ small regions near
$\bar{x}_i$, and near each $\bar{x}_i$ the corresponding stream function
satisfies a semilinear elliptic equation with a given profile function.
