6. Glossary
diffuser; vane diffuser
Divergent part of a pipe, generally designed to convert kinetic energy into pressure energy.
irrotational flow; écoulement irrotationnel
Flow in which viscosity is neglected and fluid particles do not undergo pure rotation.
steady flow
Flow in which the various characteristics (pressure, temperature, speed, etc.) have a constant value over time.
incompressible fluid; fluide incompressible
A fluid whose volume remains constant under the action of external pressure. The density of a fluid particle is constant.
Coriolis force; Coriolis force
A fictitious force that appears in a frame of reference that rotates relative to a galilean frame of reference....
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Glossary
Symbols
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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