Influence of the gas temperature on the range of microjets of vibrationally nonequilibrium SF6
I.S. Tsyryulnikov, S.V. Kirilovskiy, S.G. Mironov, T.V. Poplavskaya
Khristianocih Institute of Theoretical and Applied Mechanics SB RAS, Novosibirsk
Keywords: supersonic microjets, vibrational nonequilibrium, numerical simulation
Abstract
It is demonstrated in the paper that the range of an equilibrium SF6 jet normalized to the nozzle diameter is independent of the dimensional stagnation temperature if the values of four dimensionless parameters (jet pressure ratio, Reynolds number based on the nozzle diameter, and two temperature factors) remain unchanged. In contrast to the equilibrium case, the range of a vibrationally excited SF6 microjet is an essentially nonmonotonic function of the dimensional stagnation temperature.
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