UPSC Exam > UPSC Videos > Civil Engineering Optional Notes for UPSC > Specific Energy and Specific Energy Curve
Specific Energy and Specific Energy Curve Video Lecture | Civil Engineering Optional Notes for UPSC
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FAQs on Specific Energy and Specific Energy Curve Video Lecture - Civil Engineering Optional Notes for UPSC
| 1. What is specific energy in the context of fluid mechanics? |  |
Ans. Specific energy in fluid mechanics is the energy per unit weight of a fluid particle at a certain point in a flow field. It is a combination of the fluid's kinetic energy and potential energy at that point.
| 2. How is specific energy calculated for a fluid flow? | |
Ans. Specific energy is calculated as the sum of the kinetic energy and potential energy per unit weight of the fluid particle. The formula for specific energy is E = v^2/2g + z, where E is the specific energy, v is the velocity of the fluid particle, g is the acceleration due to gravity, and z is the elevation of the fluid particle.
| 3. What is the significance of the specific energy curve in fluid mechanics? | |
Ans. The specific energy curve is a graphical representation that shows how the specific energy of a fluid particle changes with the flow depth in an open channel. It helps in analyzing the flow behavior, determining critical flow conditions, and designing hydraulic structures.
| 4. How does specific energy affect the flow regime in open channels? | |
Ans. The specific energy of a fluid particle determines its flow regime in open channels. If the specific energy is below the critical value, the flow is subcritical, and if it is above the critical value, the flow is supercritical. The specific energy curve helps in identifying the flow regime at different flow depths.
| 5. How can specific energy be used to analyze flow patterns in rivers and canals? | |
Ans. Specific energy can be used to analyze flow patterns in rivers and canals by studying how the specific energy changes along the flow path. It helps in determining the flow velocity, depth, and energy dissipation characteristics, which are crucial for designing efficient water management systems.
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Nov 23, 2024 Last updated |
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