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4. Work exchanged between fluid and rotor
Energy can only be transmitted in useful form between the rotor and the fluid through the work of the torque C applied to the fluid in the moving channels.
We therefore propose to calculate this work and analyze its distribution between the different forms of energy that the fluid may possess.
4.1 Work exchanged across the rotor
4.1.1 Shaft work (or theoretical mass energy)
Each flow tube in the moving space can be considered as an elementary channel frozen in...
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Work exchanged between fluid and rotor
Conclusion
Bibliography
Websites
Profluid :
French association for pumps, mixers, compressors and valves
Standards
AFNOR standards : https://www.boutique.afnor.org/norme/
- Centrifugal pumps with axial suction PN10 with support under pump casing – Nominal operating point, main dimensions, designation system. - NF EN 733 - août 1995
- Technical specifications for centrifugal pumps – Class II. - NF EN ISO 5199 - mai 2002
- Pompes...
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CNAM (Conservatoire National des Arts et Métiers) Turbomachinery Chair
Appendix: Overview of unsteady effects in a turbomachine
1. Centrifugal pumps
Consider a pump impeller feeding directly into a volute casing. In order to neglect three-dimensional effects, the flow is assumed to be plane, i.e. the thickness of the flow in figure 1...
Bibliography specific to Appendix A
[a] BOULBIN (F.), KERMAREC (J.), PLUVIOSE (M.): Turbine blade forces due to partial admission, Recent advances in compressor and turbine aerothermodynamics, SFM (1992).
[b] PLUVIOSE (M.), PÉRILHON (C.), TOUSSAINT (M.): Machines à fluides, Ellipses (2002).
[c] ZACCARIA (M.), LAKSHMINARAYANA (B.): Unsteady flow field due to nozzle wake interaction with...
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