An investigation was carried out into the effects of variable inlet guide vanes (VIGVs) on the performance and stability margin of a transonic fan in the presence of inlet flow distortion. The study was carried out using computational fluid dynamics (CFD) and validated with experimental data. The capability of CFD to predict the changes in performance with or without VIGVs in the presence of an inlet flow distortion is assessed. Results show that the VIGVs improve the performance and stability margin and do so by reducing the amount of swirl at inlet to the rotor component of the fan.
The Effect of Inlet Guide Vanes on Inlet Flow Distortion Transfer and Transonic Fan Stability
Contributed by the International Gas Turbine Institute (IGTI) of ASME for publication in the JOURNAL OF TURBOMACHINERY. Manuscript received May 22, 2013; final manuscript received June 25, 2013; published online October 10, 2013. Editor: Ronald Bunker.
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Shaw, M. J., Hield, P., and Tucker, P. G. (October 10, 2013). "The Effect of Inlet Guide Vanes on Inlet Flow Distortion Transfer and Transonic Fan Stability." ASME. J. Turbomach. February 2014; 136(2): 021015. https://doi.org/10.1115/1.4024906
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