A pathline is the path or line or trajectory traced out by a single moving particle.
A line joining all these fluid particles which pass through a specific point in space is referred to as a streakline.
Streamlines are lines in the flow field such that at a given instant of time are tangential to the velocity vectors at every spatial location in a flow field. Hence, the flow cannot cross a streamline.
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 streakline. Streamlines are lines tangent to the local velocity of the fluid. They are obtained using only the velocity vectors at a given instant of time.
Ansys customers with active commercial software licenses can access the
customer portal and submit support questions. You will need your active account number to register.
Kremella
Admin Posts: 2,332
Comments
Hi @Kremella ,
A pathline is the path or line or trajectory traced out by a single moving particle.
A line joining all these fluid particles which pass through a specific point in space is referred to as a streakline.
Streamlines are lines in the flow field such that at a given instant of time are tangential to the velocity vectors at every spatial location in a flow field. Hence, the flow cannot cross a streamline.