Numerical Investigation of Hypersonic Boundary Layers of Perfect and Dense Gases
Communication avec acte
Auteur
SCIACOVELLI, Luca GLOERFELT, Xavier CINNELLA, PaolaGRASSO, FrancescoRésumé
Hypersonic turbulent boundary layers (HTBL) at Mach number M =6 of a dense gas (PP11) and a perfect gas (air) are investigated by means of Direct Numerical Simulations (DNS), from the laminar to fully turbulent state. The operating conditions are chosen in such a way to highlight dense gas effects, which profoundly alter the transition mechanisms and affect the turbulent flow properties significantly.
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Article dans une revue avec comité de lecture(Cambridge University Press (CUP), 2020)A study of dense-gas effects on the stability of compressible boundary-layer flows is conducted. From the laminar similarity solution, the temperature variations are small due to the high specific heat of dense gases, ...
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Article dans une revue avec comité de lecture(Springer, 2020-03)High-speed turbulent boundary layers of a dense gas (PP11) and a perfect gas (air) over flat plates are investigated by means of direct numerical simulations and large eddy simulations. The thermodynamic conditions of the ...
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Communication avec acteSCIACOVELLI, Luca; PASSIATORE, Donatella; GLOERFELT, Xavier; CINNELLA, Paola; (Springer International Publishing, 2020-07)
A study of dense-gas effects on the laminar, transitional and turbulent characteristics of boundary layer flows is conducted. The laminar similarity solution shows that temperature variations are small due to the high ...
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Article dans une revue avec comité de lectureSCIACOVELLI, Luca; CINNELLA, Paola; GLOERFELT, Xavier; (IOP Publishing, 2017-04)
The influence of dense gas effects on compressible turbulence is investigated by means of numerical simulations of the decay of compressible homogeneous isotropic turbulence (CHIT) and of supersonic turbulent flows through ...
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Article dans une revue avec comité de lecture(Cambridge University Press (CUP), 2017)The present paper investigates the influence of dense gases governed by complex equations of state on the dynamics of homogeneous isotropic turbulence. In particular, we investigate how differences due to the complex ...