  We present an experimental study of a confined nanoflow, which is generated
by a sphere oscillating in the proximity of a flat solid wall in a simple
fluid. Varying the oscillation frequency, the confining length scale and the
fluid mean free path over a broad range provides a detailed map of the flow. We
use this experimental map to construct a scaling function, which describes the
nanoflow in the entire parameter space, including both the hydrodynamic and the
kinetic regimes. Our scaling function unifies previous theories based on the
slip boundary condition and the effective viscosity.
