Motion with relative movement between fluid particles where continuous deformation happens.
Flow patterns
Section titled “Flow patterns”Streamline
Section titled “Streamline”A line tangential to the flow velocity.
Streamtube
Section titled “Streamtube”A passage enclosed by a collection of streamlines.
Pathline
Section titled “Pathline”Path traced by an individual fluid particle.
Streakline
Section titled “Streakline”Suppose a dye is injected into a fluid flow. Streakline indicates the positions of all particles passed through the point of injection.