2014
DOI: 10.1115/1.4026507
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Unsteady Half-Annulus Computational Fluid Dynamics Calculations of Thermal Migration Through a Cooled 2.5 Stage High-Pressure Turbine

Abstract: This paper presents an industrial perspective on the potential use of multiple-airfoil row unsteady computational fluid dynamics (CFD) calculations in high-pressure turbine design cycles. A sliding-mesh unsteady CFD simulation is performed for a high-pressure turbine section of a modern aviation engine at conditions representative of engine take-off. The turbine consists of two stages plus a center-frame strut upstream of the low-pressure turbine. The airfoil counts per row are such that a half-annulus model d… Show more

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Cited by 2 publications
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“…This emphasises the limits of steady numerical analyses of turbines when investigating unsteady rotor-stator interaction in the presence of temperature non-uniformities. Tallman [13] investigated a significant difference in the outlet temperature profiles between steady and unsteady multi-stage simulations.…”
Section: Introductionmentioning
confidence: 99%
“…This emphasises the limits of steady numerical analyses of turbines when investigating unsteady rotor-stator interaction in the presence of temperature non-uniformities. Tallman [13] investigated a significant difference in the outlet temperature profiles between steady and unsteady multi-stage simulations.…”
Section: Introductionmentioning
confidence: 99%