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engg.ques
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Nozzle:
Why for subsonic flow the cross-sectional area of nozzle decreases?
Why for subsonic flow the cross-sectional area of nozzle decreases?
The steady flow energy equation is a fundamental equation in thermodynamics that represents the conservation of energy for a fluid in steady flow. It states that the total energy of the fluid, including internal energy, kinetic energy, and potential energy, remains constant in a steady flow process.
The steady flow energy equation assumes that the fluid is in steady flow, meaning that it is not changing with time. It also assumes that there is no heat transfer or work being done on or by the fluid, and that there is no change in the fluid's chemical composition.
The steady flow energy equation is a crucial tool in engineering as it allows for the analysis and prediction of the behavior of fluids in various systems, such as turbines, pumps, and heat exchangers. It helps engineers design and optimize these systems for maximum efficiency and performance.
The steady flow energy equation is derived from the first law of thermodynamics, which states that energy cannot be created or destroyed but can only be converted from one form to another. By applying this law to a steady flow process, we can arrive at the steady flow energy equation.
Yes, the steady flow energy equation can be used for both incompressible and compressible fluids. However, for compressible fluids, the equation needs to be modified to account for changes in the fluid's density due to pressure and temperature variations along the flow path.