A Modal-Decay-Based Shock-Capturing Approach for High-Order Flux Reconstruction Method
نویسندگان
چکیده
The increasing demand for high-fidelity simulations of compressible turbulence on complex geometries poses a number challenges numerical schemes, and plenty high-order methods have been developed. may encounter spurious oscillations or even blow up strongly flows, approaches developed, such as slope limiters artificial viscosity models. In the family viscosity, which measures smoothness using modal coefficients, averaged decay (MDA) model employs all modes instead only highest mode in (MDH) model, tends to underestimate smoothness. However, MDA approach requires accuracy (usually P≥4) deliver reliable estimation this work, an used extend lower orders, P2 P3, referred MDAEX, was proposed, where neighboring elements were incorporated involve more information process. A further controlling value also introduced. proposed applied several typical benchmark cases compared with other results show that MDAEX recovers expected better than P3 captures flow structures well shock-dominated flows.
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ژورنال
عنوان ژورنال: Aerospace
سال: 2022
ISSN: ['2226-4310']
DOI: https://doi.org/10.3390/aerospace10010014