Given velocity vector the streamlines is a bunch of 3D space curves
, parametrized by real number
, and solving the following equation:
\frac{ d {\vec r}_s}{dt} \times {\vec r}_s(t) = 0 |
or equivalently
{dx_s \over u_x} ={dy_s \over u_y}={dz_s \over u_z} |