Velocity potential for a two-dimensional potential flow around a point source Calculator

The velocity potential represents the scalar potential function in the two-dimensional irrotational flow, and it helps describe the flow patterns resulting from fluid emanating radially from a single point (source) or converging toward it (sink). It is a fundamental concept in potential flow theory, which assumes that the flow is inviscid (neglects viscosity) and irrotational (vorticity is zero). 

• $\varphi$ is the velocity potential at a specific point in the flow field,
• $\mu$ is the strength of the point source (positive for a source and negative for a sink),
• $\theta$ is the angle measured from the positive x-axis,
• $r$ is the radial distance from the source (distance from the source to the point of interest).