  Two-dimensional (2D) pressure field estimation in molecular dynamics (MD)
simulations has been done using three-dimensional (3D) pressure field
calculations followed by averaging, which is computationally expensive due to
3D convolutions. In this work, we develop a direct 2D pressure field estimation
method which is much faster than 3D methods without losing accuracy. The method
is validated with MD simulations on two systems: a liquid film and a
cylindrical drop of argon suspended in surrounding vapor.
