Define flow net and state its characteristics with neat sketch.

Define flow net and state its characteristics with neat sketch. 
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Answer :

Definition of flow net: It is the grid network formed due to intersection of flow (stream) lines and equipotential lines, called as flow net.

Characteristics of flow net: 1. The flow lines and equipotential lines in the flow net intersects each other orthogonally 2. The area or field formed due to intersection of these lines is approximately square 3. The quantity of water flowing through each channel is almost same. 4. Smaller dimensions of the field indicate greater hydraulic gradient and more velocity of flow. 5. The potential drop between two adjacent equipotential lines is same. 

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