Keyur Kanade
Ansys Employee
Hello @Kremella , In simpler terms, A pathline show the trajectory of a single particle over time. A streakline is typically used in experiments. Releasing ink in water at a specific position, we practically mark the particles passing at that location. After some time, these particles would be at different locations. The line formed is a streaklineStreamlines are lines tangent to the local velocity of the fluid. They are obtained using only the velocity vectors at a given instant of time.