The accuracy of computational fluid dynamics (CFD) for the prediction of flow and heat
transfer in a direct transfer preswirl system is assessed through a comparison of CFD results
with experimental measurements. Axisymmetric and three-dimensional (3D) sector CFD
models are considered. In the 3D sector models, the preswirl nozzles or receiver holes are
represented as axisymmetric slots so that steady state solutions can be assumed. A number
of commonly used turbulence models are tested in three different CFD codes, which were …

The accuracy of computational fluid dynamics (CFD) for the prediction of flow and heat
transfer in a direct transfer pre-swirl system is assessed through a comparison of CFD
results with experimental measurements. Axisymmetric and three dimensional (3D) sector
CFD models are considered. In the 3D sector models, the pre-swirl nozzles or receiver holes
are represented as axisymmetric slots so that steady state solutions can be assumed. A
number of commonly used turbulence models are tested in three different CFD codes, which …