Numerical simulation on a mixed-flow pump operating in a turbine mode

Title:

Numerical simulation on a mixed-flow pump operating in a turbine mode

Creator:

Hlbočan, Peter and Varchola, Michal

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:d56a1f8b-a37b-428a-a7c0-b1a61c8a6fce
uuid:d56a1f8b-a37b-428a-a7c0-b1a61c8a6fce

Subject:

reversible machine, turbine impeller, pump impeller, and performance characteristics

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

The paper deals with a modeling of a flow in hydraulic parts of a turbo machine operating in a pump and in a turbine mode. The results are Q-H (Q-Y) performance characteristics of the pump operating in both modes. An important piece of knowledge is a shift of the pump‘s and turbine‘s BEP and the change of specific speeds of the turbo machine in a pump and in a turbine mode, which emerges from it. The goal of this paper was to find a shift of pump‘s and turbine‘s BEP and to obtain information about hydraulic efficiency of the pump operating in a pump and turbine mode. Anyway the aim of CFD simulation is to evaluate Q-H (Q-Y) characteristic from the point of view of a stability of Q-H curve. The analysis of flow patterns in the impeller and in the vane diffuser in a pump and turbine mode is a valuable contribution to the topic of a hydraulic interaction between an impeller and a vane diffuser. and Obsahuje seznam literatury

Language:

English

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Coverage:

97-105

Source:

Engineering mechanics: international journal for theoretical and applied mechanics | 2013 Volume:20 | Number:2

Harvested from:

CDK

Metadata only:

false