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International Journal of Turbomachinery, Propulsion and Power
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International Journal of Turbomachinery, Propulsion and Power, Volume 10, Issue 2

2025 June - 7 articles

Cover Story: Currently, the turbomachinery industry mainly uses second-order steady solvers, which miss unsteady effects critical to performance. This work applies the high-order solver Nektar++ to a compressor to study turbulent transition and inflow turbulence effects at quasi-DNS resolution. With clean inflow, bubbles and Kelvin–Helmholtz instabilities form on both blade sides. Turbulent inflow suppresses these, but at different rates. An optimal turbulence intensity is found that minimises momentum thickness. The effects of spanwise extrusion are also studied, with these affecting modelling costs and constraining structure sizes. Wall-clock time and computational expenditure are reported, showing feasibility for industrial use. View this paper
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Int. J. Turbomach. Propuls. Power - ISSN 2504-186X
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