Notice of RetractionThree dimensional numerical simulation of flow and heat transfer in a direct transfer preswirl system

Notice of Retraction

After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.

We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.

The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.

The accuracy of computational fluid dynamics (CFD) for the prediction of flow and heat transfer through a comparison of CFD results of three dimension sector models with experimental measurements in a direct transfer preswirl system is investigated. Several turbulence models are tested in two CFD codes. Reasonable quantitative agreement with experimental data for static pressure, total pressure and disc heat transfer is found for the different models, but all models gave results which differ from the experimental data in some respect. The more detailed geometry did not significantly improve the comparison with experiment, particularly in the complex mixing region near the pre-swirl nozzle jets. The predicted heat transfer near the receiver holes was also shown to be sensitive to near-wall turbulence modelling. Overall, the results are encouraging for the careful use of CFD in pre-swirl-system design.