Numerical Simulation of the Deflagration to Detonation Transition in a Tube with Repeated Obstacles: Experimental Scale Simulation Using the Artificial Thickened Flame Method

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چکیده

Abstract The Artificial Thickened Flame (ATF) method, which involves artificially increasing the flame thickness so as to simulate with a coarse grid resolution, is applied reduce computational cost of predicting Deflagration Detonation Transition (DDT) in tube repeated obstacles. While simulation results depended on parameter N (the number points laminar thickness), it was found that values more than 10 may be excessive. show chosen method predicts speed compared reference experiment and captures detail strong ignitions near corner between obstacle sidewall. present also wrinkle front structure during acceleration flame.

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prepared for the IMA Workshop on High-Speed Combustion in Gaseous and Condensed Phase Energetic Materials, Minneapolis, November 8–12, 1999

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ژورنال

عنوان ژورنال: Prace Instytutu Lotnictwa

سال: 2021

ISSN: ['2545-2835', '2300-5408', '0509-6669']

DOI: https://doi.org/10.2478/tar-2021-0021