Assessment of a high-order shock-capturing central-difference scheme for hypersonic turbulent flow simulations
نویسندگان
چکیده
High-speed turbulent flows are encountered in most space-related applications (including exploration, tourism and defense fields) represent a subject of growing interest the last decades. A major challenge performing high-fidelity simulations such resides stringent requirements for numerical schemes to be used. These must robust enough handle strong, unsteady discontinuities, while ensuring low amounts intrinsic dissipation smooth flow regions. Furthermore, wide range temporal spatial active scales leads concurrent needs stabilization accurate representation smallest resolved cases under-resolved configurations. In this paper, we present finite-difference high-order shock-capturing technique based on Jameson’s artificial diffusivity methodology. The resulting scheme is ninth-order-accurate far from discontinuities relies addition close large gradient shock detector slightly revised enhance its selectivity avoid spurious activations term. suite test ranging 1D 3D configurations (namely, perfect-gas chemically reacting tubes, Shu–Osher problem, isentropic vortex advection, under-expanded jet, compressible Taylor–Green Vortex, supersonic hypersonic boundary layers) analyzed order capability proposed strategy variety problems, calorically-perfect air multi-species reactive flows. Results obtained grids also considered applicability context implicit Large-Eddy Simulations.
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ژورنال
عنوان ژورنال: Computers & Fluids
سال: 2021
ISSN: ['0045-7930', '1879-0747']
DOI: https://doi.org/10.1016/j.compfluid.2021.105134