This paper describes the computational fluid dynamics (CFD) approach coupled with an automated grid generation technique utilized for the numerical optimization of a modern centrifugal compressor with an inducer vaned shroud for increased operability margin. The grid generation process was automated to permit rapid optimization of the impeller and vaned shroud geometry. A three-dimensional, viscous, steady flow, mixing-plane approach was utilized to numerically analyze the impeller and vaned shroud in a coupled fashion to capture the interaction effects. The numerical technique verifies the ability of the vane shroud to extend compressor surge margin at the part-speed operating condition, while maintaining acceptable high-speed performance. CFD analyses confirm that the aerodynamics of the vaned shroud match expectation, and are consistent with the mass-averaged compressor speedline characteristics generated from the CFD results.
Numerical Optimization of a Vaned Shroud Design for Increased Operability Margin in Modern Centrifugal Compressors
- Views Icon Views
- Share Icon Share
- Search Site
Barton, M. T., Mansour, M. L., Liu, J. S., and Palmer, D. L. (March 1, 2004). "Numerical Optimization of a Vaned Shroud Design for Increased Operability Margin in Modern Centrifugal Compressors." ASME. J. Turbomach. October 2006; 128(4): 627–631. https://doi.org/10.1115/1.2187526
Download citation file: