Abstract
Abstract In this paper an efficient numerical strategy for computational fluid dynamics (CFD) simulation of surge events in a three-shaft engine compression system is presented. Numerical results are compared against measured data and the sources of discrepancies and uncertainties are addressed. It is discovered that the engine bleed system has a major impact in reducing the aerodynamic loading during surge in the core system. To the best knowledge of the authors, this is the first time that such a complex CFD computation is attempted and compared against real engine measured data and will provide valuable information to other CFD users as well as gas turbine manufacturers.
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