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In this video we look at the difference between pathline, streakline and streamline and also determine a method to calculate the equation of a streamline. A pathline follows the movement of a single fluid particle between two parts and is part of the Lagrangian specification of a flow field. A streakline is defined as if colored dye was continuously injected into a fixed location, it would leave a streakline, i.e. the reference po
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