Numerical Modeling of the Flow in a Vaneless Diffuser of Centrifugal Compressor Stage
Keyword(s):
This paper presents the results of numerical investigation of the flow in a vaneless diffuser of centrifugal compressor stage. Simulations were performed using both a commercial CFD package ANSYS CFX and the own-designed computer program. Steady conditions involving SST turbulence model were used for the calculations using CFX. To consider the interaction between impeller and diffuser, not just a diffuser but the whole stage was calculated. The own-designed methodology is based on solving of conservation equations with assumptions that flow in a diffuser is steady state and axisymmetric. The flow area is divided into the flow core and boundary layers. Results of calculation were compared with experimental data.
2020 ◽
Vol 10
(3)
◽
pp. 14879-14894
2005 ◽
Vol 219
(10)
◽
pp. 1053-1059
◽
2005 ◽
Vol 219
(10)
◽
pp. 1061-1068
◽