The velocity potential (often denoted by “φ”) at an arbitrary point in a fluid flow field is a scalar function that describes the flow velocity components in terms of a single scalar value. It is a concept used in the study of fluid dynamics and is particularly applicable in the context of irrotational or potential flow.
- φ: Velocity potential at an arbitrary point.
- λ: Strength of the sink.
- r: The distance from the arbitrary point to the sink (center of the sink).
- r1: The distance from the arbitrary point to the source (center of the source).