2026-04-17T23:32:48Zhttps://recercat.cat/oai/request

oai:recercat.cat:2117/3942402025-07-17T02:10:06Zcom_2072_1033col_2072_452950

00925njm 22002777a 4500 dc de Michele, Carlo author Artiano, Marco author Capuano, Francesco author Coppola, Gennaro author 2023 The effects of kinetic-energy preservation errors due to Runge-Kutta (RK) temporal integrators have been analyzed for the case of large-eddy simulations of incompressible turbulent channel flow. Simulations have been run using the open-source solver Xcompact3D with an implicit spectral vanishing viscosity model and a variety of temporal Runge-Kutta integrators. Explicit pseudo-symplectic schemes, with improved energy preservation properties, have been compared to standard RK methods. The results show a marked decrease in the temporal error for higher-order pseudo-symplectic methods, and suggest that these schemes could be used to attain results comparable to traditional methods at a reduced computational cost. Postprint (published version) Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids Fluid dynamics Dinàmica de fluids Performance and error analysis of structure-preserving time-integration procedures for incompressible-flow simulations