Calculation of the Impellers Head Characteristics of the Low-Flow Centrifugal Compressor Stages Based on Quasi-Three-dimensional Inviscid and Viscous Methods.

Autor: Ivanov, V . M., Kozhukhov, Y. V., Danilishin, A. M.
Předmět:
Zdroj: AIP Conference Proceedings; 2019, Vol. 2141 Issue 1, p030064-1-030064-5, 5p
Abstrakt: The paper shows the results of calculation internal head characteristics of the intermediate low-flow centrifugal compressor stages impellers. The type of stages is used at the last stages of multistage centrifugal compressors of the high and ultrahigh pressure. Inviscid quasi-three-dimensional and viscous three-dimensional calculation methods are used. Numerical models of the objects of study represent the flow part of the impeller and the blade-free diffuser with width equal to the height of the blade at the output of the impeller. For a CFD calculation, two interfaces are considered: frozen rotor and stage. It is found that the most qualitative character has a viscous calculation with the Stage interface and inviscid quasi-three-dimensional calculation. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index