Velocity Diagram

[@TutorialsPoint_]

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[@urbantech28]

I have a day left for my End sems.....you are helping me indeed

[@تباركصبيحقاسمأحمد]

Thank you so much it was really helpful.

[@Dyllerium]

Thank you sir for this video it really helped me a lot. I would like to ask you a question as I am doing a turbo machinery course for my bachelors. Its about the frame of reference for the outlet relative flow angle. In my textbook "S.L Dixon- thermo and fluid mechanics of turbo machinery" the use the outlet radial plane as the frame of reference for this angle. I also have notes that the lecturer gave us to complete additional problems for the exam, in these notes they are taking the tangential line/plane as the frame of reference. I have asked my lecturer about this and he responded saying "the frame of reference depends on your understanding of the theory, there is no standard for selecting the frame of reference for this angle." Now I understand the theory of velocity triangles quite well specifically for axial flow compressors and turbines, for some reason I can't seem to conclude why they are using different frame of reference, the only conclusion I have been able to make is that the peripheral velocity vector U2 is in opposite directions in the two different cases and I cannot find any information on the internet that clearly explains this. I would greatly appreciate it if you could give me an answer to this problem.

[@AbdulAziz-uc9ml]

You should change the video name to "Slip factor explained by Velocity Diagram" ... xD Nice stuff anyway

[@Engineer.1]

You are great

[@INAMmathematicivilengineering]

velocity diagram and momentum equation applied to turbines? Give short answer in comment