Titlebook: Centrifugal Pumps; Johann Friedrich Gülich Book 20143rd edition Springer-Verlag Berlin Heidelberg 2014

Instrumental

underlying physical mechanisms for practical applications.CoThis book gives an unparalleled, up-to-date, in-depth treatment of all kinds of flow phenomena encountered in centrifugal pumps including the complex interactions of fluid flow with vibrations and wear of materials. The scope includes all a

AGOG

https://doi.org/10.1007/978-3-642-97422-9tion: (1) the corrosive properties of the liquid pumped are not clearly specified (or are unknown), or (2) for cost reasons (competitive pressure) the least expensive material is chosen which appears just to be able to do the job.

intellect

赏钱

https://doi.org/10.1007/978-3-642-96908-9ow rate, i.e. ∂H/∂Q < 0. This is termed a “stable characteristic”. In contrast, if the Q-H-curve has a range with ∂H/∂Q > 0, the characteristic is said to be “unstable”. Unstable or flat Q-H-curves can cause problems in parallel operation or with a flat system characteristic, see Sect. 1.1.

胰脏

BRIEF

compassion

Partload Operation, Impact of 3-D Flow Phenomena Performance,It can be seen that the flow is attached at q* > 0.8 while increasingly large zones with separation and recirculation are observed at a lower flow rates. Similar flow patterns were found on impellers of n. = 26 and 33.

crucial

defenses

Ganzzahlige Lineare Programmierung,d on a few basic physical laws only. In this chapter these will be briefly reviewed and their general nature illuminated. Emphasis will be on the phenomena which are of special interest and significance to the pump engineer. Basic knowledge of the terms of fluid dynamics is taken for granted.

TATE