Cellwise conservative unsplit advection for the volume of fluid method
Cellwise VOF-update through backward tracing of the cell's pre-image. Accuracy enhanced via bicubic spatial interpolation and polygonal chain streakline. The CCU advection scheme is fully conservative and bounded. No limitation on the Courant number. Geometrical errors dominated by PLIC interface representation errors.
volume of fluid unsplit advection scheme cellwise approach pre-image backward tracing donating region volume conservation