Numerical simulations of a hypersonic ramjet intake at Mach 5 are performed combining a high-order and time-accurate Large-Eddy-Simulation model with a sharp-interface Immersed Boundary Method. The study aims at proving that advanced fluid dynamics techniques, such as LES, in combination with an ad-hoc method for embedded geometries, represent a robust and accurate framework to deal with the unsteady and off-design behavior of highly-turbulent flows in the field of hypersonic applications. The authors show that the present methodology well reproduces the unsteady behavior observed in the experiment of Berto et al. [1] in corresponding conditions, and allows a complete characterization of the 3D time-resolved flow fields.
Large-eddy-simulations of the unsteady behaviour of a mach 5 hypersonic intake
De Vanna F.;Picano F.;Benini E.
2021
Abstract
Numerical simulations of a hypersonic ramjet intake at Mach 5 are performed combining a high-order and time-accurate Large-Eddy-Simulation model with a sharp-interface Immersed Boundary Method. The study aims at proving that advanced fluid dynamics techniques, such as LES, in combination with an ad-hoc method for embedded geometries, represent a robust and accurate framework to deal with the unsteady and off-design behavior of highly-turbulent flows in the field of hypersonic applications. The authors show that the present methodology well reproduces the unsteady behavior observed in the experiment of Berto et al. [1] in corresponding conditions, and allows a complete characterization of the 3D time-resolved flow fields.| File | Dimensione | Formato | |
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