In Fluid Kinematics, a Flow Net is a graphical representation used for the analysis of
- ATurbulent flow in rough pipes.
- BTwo-dimensional, irrotational and incompressible flow.Correct
- CFlow of highly viscous fluids like heavy oil.
- DUnsteady flow in surge tanks.
Solution
Concept
Flow Net Properties
Formula
N/A
Step-by-step solution
1. Review the given question regarding the flow conditions required for analyzing a Flow Net in Fluid Kinematics. 2. Recall that a Flow Net is used for ideal flow, which is two-dimensional, irrotational, and incompressible. 3. Compare with the given options and select Option (b) as the correct choice.
Explanation
A flow net is a grid formed by streamlines and equipotential lines. It is used to analyze ideal fluid flow that is two-dimensional, irrotational (particles do not rotate about their axes), and incompressible (fluid density remains constant).
Shortcut
To remember the flow conditions required for a Flow Net, use the mnemonic "2D-I-I": - 2D: Two-dimensional - I: Irrotational - I: Incompressible
Common mistake
A common mistake is selecting Option A or Option C by assuming flow nets apply to real, viscous, or turbulent fluid flows. In reality, flow nets are based on potential flow theory, which strictly assumes an ideal fluid that is two-dimensional, irrotational, and incompressible.
Correct answer: B) Two-dimensional, irrotational and incompressible flow.