  A discontinuous Galerkin method by patch reconstruction is proposed for
Stokes flows. A locally divergence-free reconstruction space is employed as the
approximation space, and the interior penalty method is adopted which imposes
the normal component penalty terms to cancel out the pressure term.
Consequently, the Stokes equation can be solved as an elliptic system instead
of a saddle-point problem due to such weak form. The number of degree of
freedoms of our method is the same as the number of elements in the mesh for
different order of accuracy. The error estimations of the proposed method are
given in a classical style, which are then verified by some numerical examples.
