Computational Methods And Measurements Of Heat Transfer To The Barrel Of A Hot Gas Accelerator Under High Pressure
Price
Free (open access)
Transaction
Volume
4
Pages
16
Published
1993
Size
1,345 kb
Paper DOI
10.2495/CMEM930321
Copyright
WIT Press
Author(s)
R. Heiser, F. Seiler, K. Zimmermann & G. Zettler
Abstract
Computational methods and measurements of heat transfer to the barrel of a hot gas accelerator under high pressure R. Heiser", F. Seiler\ K. Zimmermann\ G. Zettler^ ^Fraunhofer-Institut fur Kurzzeitdynamik, Weil am Rhein, Germany 5 Saint-Louis, France ABSTRACT The action of the hot and compressed propellant gas flow in a gun barrel behind a projectile on heat transfer to the barrel wall has been investigated by experimental and theoretical methods. For theoreti- cal description of the in-bore flow development two interior ballistic models will be applied: On the one hand a numerical model for solving the full Navier-Stokes equations including a turbulence mo- del, and on the other hand an analytical boundary layer model using the boundary layer equations of Prandtl. The results of both models describing the deve- lopment of the compressible, turbulent boundary layer at the inner tube wall are compared with heat transfer measurements perfo
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