Dynamic simulations of post-stall performance in multistage axial compressors

Autor: JunQiang Zhu, Wenhai Du, Olivier Léonard
Rok vydání: 2012
Předmět:
Zdroj: Journal of Thermal Science. 21:311-321
ISSN: 1993-033X
1003-2169
Popis: In this contribution a quasi-one-dimensional tool for stationary and transient simulations of post-stall flows in multistage axial compressors is presented. An adapted version of the 1D Euler equations with additional source terms is discretized with a finite volume method and solved in time by a fourth-order Runge-Kutta scheme. The equations are discretized at mid-span both inside the blade rows and the non-bladed regions. The source terms express the blade-flow interactions and are estimated by calculating the velocity triangles for each blade row. Loss and deviation correlations are implemented and compared to experimental data in normal flow, stalled flow and reversed flow regions.
Databáze: OpenAIRE