Radial velocity for three dimensional point source Calculator

The radial velocity for a three-dimensional point source represents the velocity of the fluid flow at any given distance (r) from the point source. The point source is a theoretical concept used in potential flow theory to model fluid flow emanating from a single point or converging towards it. The radial velocity describes how the fluid’s velocity changes as we move radially outward or inward from the point source. 

• Vr is the radial velocity (in m/s) at a distance (r) from the point source.
• λ is the source strength or source/sink rate (in m³/s). 
• r is the radial distance from the point source to the observation point (in meters).