@inproceedings{3ca3770fc69c4d2ab4521e776b3d5e46,
title = "Numerical investigation of double-cone flows with high enthalpy effects",
abstract = "A numerical study of shock/shock and shock/boundary layer interactions generated by a double-cone model that is placed in a hypersonic free-stream is presented. Computational results are compared with the experimental measurements made at the CUBRC LENS facility for nitrogen flows at high enthalpy conditions. The CFD predictions agree well with surface pressure and heat-flux measurements for all but one of the double-cone cases that have been studied by the authors. Unsteadiness is observed in computations of one of the LENS cases, however for this case the experimental measurements show that the flowfield is steady. To understand this discrepancy, several double-cone experiments performed in two different facilities with both air and nitrogen as the working gas are examined in the present study. Computational results agree well with measurements made in both the AEDC tunnel 9 and the CUBRC LENS facility for double-cone flows at low free-stream Reynolds numbers where the flow is steady. It is shown that at higher freestream pressures the double-cone simulations develop instabilities that result in an unsteady separation.",
keywords = "Double cone, Hypersonic, Shock boundary layer interactions, Unsteadiness.",
author = "I. Nompelis and Candler, {G. V.}",
year = "2009",
language = "English (US)",
isbn = "9789292212230",
series = "European Space Agency, (Special Publication) ESA SP",
booktitle = "Proceedings of the 6th European Symposium on Aerothermodynamics for Space Vehicles",
note = "6th European Symposium Aerothermodynamics for Space Vehicles ; Conference date: 03-11-2008 Through 06-11-2008",
}