The document discusses streamlines in fluid mechanics, defining them as paths of fluid particles in steady flow. Key properties include that streamlines do not intersect and that the velocity can vary at different points along a streamline while remaining constant at a point. Additionally, the document mentions that the crowding of streamlines indicates higher fluid speed.

1. Streamline
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11th grade

2. Group members
Roll no. Group members
26 Prince kumar
08 Anis linda
Jatin kumar Verma 19
Aman ram tushar X1 A1 04
Manish 21
Aayush kumar 01

3. Streamline
A streamline is the path of fluid particles under
steady flow. In fluid mechanics, streamlines are
the path of imaginary particles that are
suspended in a fluid and carried along with it.

4. In steady flow, the fluid is moving, but the streamlines are fixed. Where streamlines crowd
together, the fluid speed is relatively high. Where they open out, the fluid is relatively still. The
flow properties like velocity and pressure at each point remain constant in a streamline.
A streamline can be represented as a curve. The tangential at any point on the graph reveals
the orientation of the fluid velocity at that moment. Dye can be used in water, or smoke in air,
to see streaklines. Streaklines are identical to streamlines for steady flow. The patterns guide
design modifications, aiming to reduce the drag.

5. Properties of streamlines
1. The Tangent at any point of Streamline give the direction of velocity of the liquid at that
point.
2. Two streamlines cannot Intersect. If two streamline intersect, then it would mean two
different directions of velocity at a given point. This is physically impossible. Hence two
streamlines cannot intersect.
3. At a particular point of the Streamline, the velocity of liquid is constant. However, at
different points of streamline, the velocity may be different.
4. Crowding of Streamline represents the faster flow of liquid.

6. Thanks