  We study the local balance of momentum for weak solutions of incompressible
Euler equations obtained from the zero-viscosity limit in the presence of solid
boundaries, taking as an example flow around a finite, smooth body. We show
that both viscous skin friction and wall pressure exist in the inviscid limit
as distributions on the body surface. We define a nonlinear spatial flux of
momentum toward the wall for the Euler solution, and show that wall friction
and pressure are obtained from this momentum flux in the limit of vanishing
distance to the wall, for the wall-parallel and wall-normal components,
respectively. We show furthermore that the skin friction describing anomalous
momentum transfer to the wall will vanish if velocity and pressure are bounded
in a neighborhood of the wall and if also the essential supremum of wall-normal
velocity within a small distance of the wall vanishes with this distance (a
precise form of the non-flow-through condition). In the latter case, all of the
limiting drag arises from pressure forces acting on the body and the pressure
at the body surface can be obtained as the limit approaching the wall of the
interior pressure for the Euler solution. As one application of this result, we
show that Lighthill's theory of vorticity generation at the wall is valid for
the Euler solutions obtained in the inviscid limit. Further, in a companion
work, we show that the Josephson-Anderson relation for the drag, recently
derived for strong Navier-Stokes solutions, is valid for weak Euler solutions
obtained in their inviscid limit.
