2016
DOI: 10.1016/j.ijheatfluidflow.2016.07.007
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Turbine vane film cooling: Heat transfer evaluation using high-order discontinuous Galerkin RANS computations

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Cited by 3 publications
(3 citation statements)
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“…The mid-span linear cascade arrangement may impact the entropy wave attenuation when compared to an annular blade row, but the focus of the present work is on the effect of film cooling on entropy noise and not on the effect of the secondary flows such as the hub passage vortex, tip passage vortex, hub-shed vortex, and tip-shed vortex, which are all found in the PoliMi turbine [26]. Such an approach of analysing a blade in a cascade arrangement was used in previous works on film cooling [27,28]. This assumption allows the attenuation effects due to film cooling to be distinguished, as other attenuation effects due to secondary flows are minimised.…”
Section: Stator Geometrymentioning
confidence: 99%
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“…The mid-span linear cascade arrangement may impact the entropy wave attenuation when compared to an annular blade row, but the focus of the present work is on the effect of film cooling on entropy noise and not on the effect of the secondary flows such as the hub passage vortex, tip passage vortex, hub-shed vortex, and tip-shed vortex, which are all found in the PoliMi turbine [26]. Such an approach of analysing a blade in a cascade arrangement was used in previous works on film cooling [27,28]. This assumption allows the attenuation effects due to film cooling to be distinguished, as other attenuation effects due to secondary flows are minimised.…”
Section: Stator Geometrymentioning
confidence: 99%
“…The C3X blade has five cooling rows on the leading edge, which are referred to as showerhead (SH), two rows on the suction side (SS), as well as two rows on the pressure side (PS) of the blade [23]. As the PoliMi stator blade is much smaller when compared to the C3X test vane, the film cooling hole diameter (D) is adjusted down to 0.5 mm, which is in agreement with blades of similar size [27]. The centre row of the SH is located on the stagnation line with the adjacent rows (1, 2 and 4, 5) being staggered in spanwise direction, as shown in Fig.…”
Section: A Film Cooling Geometrymentioning
confidence: 99%
“…An analysis was conducted with the LKE-based model in a vane cascade, but the results were not compared with those of the γ − Re θ model. According to the authors, the model was able to accurately predict high Reynolds number flow, but its agreement with experimental data for low Reynolds number flow was limited [13]. Another study by Liu [14] focused on the transition performance for low Reynolds number flow applications, where the γ − Re θ model was found to provide better transition onset predictions.…”
mentioning
confidence: 99%