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A Computational Model of an Aerodynamically-valved Helmholtz-Type Pulse Combustor

DOI: 10.1615/ICHMT.1992.ExpSystComputSimEnergEngin.520
pages 316-321

I. Smajevic
Masinski fakultet, University of Sarajevo

Kemal Hanjalic
Department of Physics, Novosibirsk State University (NSU), 1, Pirogov Str., Novosibirsk, 630090, Russia; Faculty of Applied Sciences, Delft University of Technology (TU Delft), Building 58, Van der Maasweg 9, 2629 HZ, Delft, The Netherlands

Sinopsis

The paper outlines the rationale and presents some results of computational model of a gas-fired pulse combustor with aerodynamic valves. The development of the model followed experimental investigations during which the combustor geometry and operating conditions were defined and basic parameters correlated. A simple "tank and tube" approach was adopted by decomposing the combustor into several elements which were modelled separately, together with the interconnecting processes. The solution was obtained by marching integration in time over several cycles. The model reproduced reasonably well the recorded time history and averaged values of all basic parameters. Subject to further refinement, the model is expected to complement the experiments and to serve the purpose of further optimization of design and operating parameters of the combustor.

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