Helical boundary conditions

Helical boundary conditions are a type of boundary condition used in physical and computational simulations, particularly in the fields of fluid dynamics, materials science, and some areas of computational physics. They are particularly useful for problems involving periodic systems that exhibit helical or twisted geometries. In simple terms, helical boundary conditions imply that the behavior of the system at one boundary is related to the behavior at a corresponding point on the opposite boundary in a way that mimics a helical or spiral structure.