Given velocity vector the streaklines is a bunch of curves
, parametrized by the stem points
at zero-time
, and solving the following equation:
\begin{cases}
\displaystyle
{\frac {d{\vec {r}}_s(t)}{dt}}={\vec {u}}_s({\vec {r}}_s,t)
\\[1.2ex]
{\vec {r}}_s(t = \tau_s)={\vec {r}}_{s0}
\end{cases}
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