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CFD Analysis of Flow and Heat Transfer in a Direct Transfer Pre-Swirl System

This paper forms part of a program to validate the use of CFD for design of pre-swirl systems in gas turbine engines. This paper focused on the validation of CFD for heat transfer in the pre-swirl system. The experimental data used, provided by the University of Bath, is the only full coverage heat transfer data available for pre-swirl systems. This study provides a benchmark for future code improvement. Based on this validation program, Rolls-Royce have made extensive use of CFD for pre-swirl system design including novel patented designs. (Rolls-Royce contact: Dr. Colin Young, CFD specialist. Email: colin.young@rolls-royce.com)