wake_mesh - usuaero/MachLine GitHub Wiki
The wake_mesh type (defined in wake_mesh.f90) is used to model the wake shed aft of lifting surfaces. All wake surfaces are rolled up into one instance of wake_mesh. For ease of computation, the wake is not modeled as semi-infinite, but rather is terminated a certain distance aft of the origin. This distance is set using the trefftz_distance option in the input file.
A single instance of wake_mesh contains one of more wake_strip objects, explained here. Each wake strip is shed from an edge defined by only two panels. All wake strips are entirely ignorant of each other.