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A contribution to the turbulence of interior ballistics flow.

Ein Beitrag zur Turbulenz von innenballistischen Strömungen
: Garloff, J.; Heiser, R.

American Institute of Aeronautics and Astronautics -AIAA-, Washington/D.C.:
AIAA/ASME/SAE/ASEE 25th Joint Propulsion Conference
Washington/D.C., 1989 (AIAA paper 2556/2557)
ISSN: 0146-3705
10 S. : Abb.,Tab.,Lit.
Joint Propulsion Conference <25, 1989, Monterey>
Fraunhofer EMI ()
Beispiel; computational code; example; experiment; Innenballistik; interior ballistics; Navier-Stokes equations; Navier-Stokes-Gleichung; Rechenmodell; Rohrströmung; tube flow; turbulence models; Turbulenzmodell

The compressible, viscous, turbulent gas expansion flow behind an accelerating projectile moving in a gun tube is investigated. Turbulence is described by two algebraic models, viz. the models by Cebeci-Smith- Mosinskis and Baldwin-Lomax, as well as by a one-equation model for the turbulent kinetic energy. Computational results obtained by application of these models are compared to experimental data obtained with two low pressure gun simulators. Also numerical predictions are reported for the flow behind a projectile under more realistic interior ballistic conditions.