Modeling of chemically nonequilibrium separated flows in the HyCFS software system
T.Yu. Shkredov1,2, G.V. Shoev1,2
1Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Novosibirsk, Russia
2Lomonosov Moscow State University, Moscow, Russia
Keywords: separation, chemical reactions, Riemann solvers, AUSMPW+
Abstract
Various issues of implementation and application of the AUSMPW+ solver for computing inviscid flows at the control volume face in the HyCFS code on a structured grid are discussed. It is shown that the use of AUSMPW+ allows the carbuncle formation in the flow around a cylinder to be successfully prevented. Simulations of flows with boundary layer separation by using the AUSMPW+ solver leads to results that coincide with those obtained by the HLLC solver. The pressure and heat transfer coefficients for a cone-flare model predicted by HyCFS coincide with the experimental data of LENS-XX with the same accuracy as the results of other researchers computed by independent numerical codes.
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