Linked from
The 22 pages that link to Potential flow, each with the reason it gives.
VorticityCompared with: It shows the limit of flow descriptions that exclude local rotation.
CurlCompared with: Its velocity has zero curl wherever the potential is smooth.
Potential theoryRelated: Incompressible, irrotational flows lead to harmonic velocity potentials.
StreamlineRelated: Its velocity potential and stream function form orthogonal contour families.
Schwarz–Christoffel mappingRelated: Polygonal channels can be transformed into simpler flow domains.