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Various Methods of Drawing Flow Nets
1.
Hydraulic models:
a.
Streamlines can be traced by injecting a dye in a
seepage model or Heleshaw apparatus.
b.
They by drawing equipotential lines the flow net is
completed.
2.
Analytical Method:
a.
It is only applied to problems with simple and ideal
boundaries conditions.
b.
The equation corresponding curve Ç¿ and Ñ° are first
obtained and the same are plotted to give the flow net pattern for the flow of
fluid between the given boundary shape.
3.
Electrical Analogy Method:
This method based on the fact that the flow of
fluids and flow of electricity through a conductor are analogus. These two
systems are similar in the respect that electric potential is analogus to the
velocity potential. The electric current is analogus to the velocity of flow
and the homogeneous conductor is analogus to the homogeneous fluid. This method
only for a practical method of drawing a flow net for a particular set of
boundaries.
4.
Graphical Method:
This method requires a lot of erasing to get the
proper shape of a flow net and also consume a lots of time. A graphical
consists of drawing steamlines and equipotential lines such that they cut
orthogonally and form curvilinear squares.
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