Discuss the meaning of reverse swirl in reaction hydroturbines, and explain why some reverse swirl may be desirable. Use an equation to support your answer. Why is it not wise to have too much reverse swirl?

Q: isnt the mass Mg? so 10^6?

A: Mass is in Mg ( mega gram ).

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Q: Stagnation level S JA C d, arən=Zg(B-y) C, D 0=xenhe="a v =-apay=VC, d, Datum E 2B 2B

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A:

Q: (4) The air stagnation density at an exit section of isentropic converging nozzle (pe = 170 kPa, Te…

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Q: Example 2 An air stream with a Mach number of (3.04) a pressure of (302 kPa) and a temperature of…

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A: Please refer the step 2 for the details explanation

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Q: Example 11.2 An airstream, at a temperature of 238 K, is moving at a speed of 773 m s when it…

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A: Ans: D is correct. 1.7 MPa or 1700 kPa

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A: to determine- standard molar entropy change

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A: Yes, We have used SG = 0.075

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Forming and Shaping

Metal forming is a category of metalworking process through which the material can be given the desired shape and size by subjecting it to plastic deformation, where the component undergoes bulk deformation process upon application of loads. Unlike the shearing and machining process, the material does not undergo up to a failure point as indicated in the stress-strain curve. Hence, the stresses induced during the forming process are greater than yield strength but less than the failure strength of the material. The process does not lead to the loss of material, so it can be said to be an economical process. During forming, the material is subjected to tensile forces, compressive forces, bending, and shearing loading conditions. The material should possess the property of ductility to undergo the forming process.