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International Journal of Energetic Materials and Chemical Propulsion
ESCI SJR: 0.142 SNIP: 0.16 CiteScore™: 0.29

ISSN Imprimer: 2150-766X
ISSN En ligne: 2150-7678

International Journal of Energetic Materials and Chemical Propulsion

DOI: 10.1615/IntJEnergeticMaterialsChemProp.v5.i1-6.330
pages 306-315

INVESTIGATION OF COMBUSTING FLOW FIELD IN COMPOSITE PROPELLANT CRACKS

Timin Cai
College of Astronautics, Northwestern Polytechnical University, China
Wenpu Zhang
College of Astronautics, Northwestern Polytechnical University, China
Guoqiang He
Science and Technology on Combustion, Internal Flow and Thermal-structure Laboratory, Nothwestern Polytechnique University, Xi'an 710072, China

RÉSUMÉ

Two-dimensional combusting flow field in composite propellant cracks was studied by both theoretical calculation and experimental method to provide pressure distribution and flame spreading rate distribution in cracks. In the numerical calculation, a finite element method was used to solve 2-D unsteady compressible Navier-Stokes equation system, heat transfer and ignition criterion, erosive burning effect and crack deformation were coupled. A high-speed motion analyzer and a special crack combustion simulator were used for experimental study. The results of calculation and experiment show good agreement.


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