NDLI: CFD Analysis of a 15 Stage Axial Compressor: Part I

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Belamri, T. Galpin, P. Braune, A. Cornelius, C.
Copyright Year	2005
Abstract	The flow field of a 15 stage axial compressor is analyzed using a 3-D Navier-Stokes CFD tool. The compressor under investigation is a prototype first compressor version before optimization of the Siemens V84.3A family. A methodology is described for steady state and transient flow simulations of the entire 15 stages compressor in one computation (not piece by piece). The simulation includes tip gaps, mass bleeds, hub leakage flows, and ranges from single passage to full 360 degrees analysis. The work is divided into two companion papers. This first part, “CFD Analysis of a 15 Stage Axial Compressor Part I: Methods” describes the overall methodology used, based on a middle portion of the compressor R5S9 (Rotor 5 to Stator 9). Various effects are analyzed: mesh style and refinement, boundary conditions, steady or transient, tip clearance, and numerical issues (turbulence model choice, advection model choice, parallel processing performance). A high sensitivity of the predictions to the tip clearance height was found. Excellent design point predictions are obtained with steady-state frame change interface models (Stage average interface), as well as with transient simulations (transient rotor-stator interface).
Sponsorship	International Gas Turbine Institute
Starting Page	1001
Ending Page	1008
Page Count	8
File Format	PDF
ISBN	0791847306
DOI	10.1115/GT2005-68261
e-ISBN	0791837548
Volume Number	Volume 6: Turbo Expo 2005, Parts A and B
Conference Proceedings	ASME Turbo Expo 2005: Power for Land, Sea, and Air
Language	English
Publisher Date	2005-06-06
Publisher Place	Reno, Nevada, USA
Access Restriction	Subscribed
Subject Keyword	Turbulence Computational fluid dynamics Rotors Clearances (engineering) Compressors Unsteady flow Steady state Flow (dynamics) Optimization Transients (dynamics) Design Simulation Computation Stators Parallel processing Boundary-value problems Leakage flows Engineering prototypes
Content Type	Text
Resource Type	Article

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