UNBURNED GAS POCKETS IN DETONATIONS WITH IRREGULAR STRUCTURE

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MAHMOUDI K.; MAZAHERI K.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Paper Information

Journal: JOURNAL OF ENERGETIC MATERIALS Year:2013 | Volume:8 | Issue:1 (18) Page(s): 3-15

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Information Journal Paper

Title

UNBURNED GAS POCKETS IN DETONATIONS WITH IRREGULAR STRUCTURE

Author(s)

MAHMOUDI K. | MAZAHERI K. | Issue Writer Certificate

Keywords

GASEOUS DETONATIONQ3

TRANSVERSE WAVEQ3

HYDRODYNAMIC INSTABILITYQ3

UNBURNT GAS POCKETQ3

Abstract

A two-dimensional numerical simulation is performed in the present work to study the structure of a detonation wave in high activation energy mixtures, which are characterized by their turbulent reaction zone structure and unreacted pockets. The process of TRANSVERSE WAVE and triple point collision with the channel walls, formation and consumption mechanism of UNBURNT GAS POCKETs is examined using very high-resolution numerical simulation. Results show that as the triple point collides with the channel wall, the transverse shock interacts with the unreacted pocket. After reflection of the triple point off the wall, the TRANSVERSE WAVE interacts with the wall. During the collision and reflection process, the shear layer detaches from the shock front, producing a pocket of unburnt gas. Energy resealed via consumption of unburnt pockets by turbulent mixing due to hydrodynamic instabilities (Richtmyer-Meshkovnad Kelvin-Helmholtz instabilities) found to have profound role in re-initiation mechanism of detonations at the end of a detonation cell.

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APA: Copy

MAHMOUDI, K., & MAZAHERI, K.. (2013). UNBURNED GAS POCKETS IN DETONATIONS WITH IRREGULAR STRUCTURE. JOURNAL OF ENERGETIC MATERIALS, 8(1 (18)), 3-15. SID. https://sid.ir/paper/115389/en

Vancouver: Copy

MAHMOUDI K., MAZAHERI K.. UNBURNED GAS POCKETS IN DETONATIONS WITH IRREGULAR STRUCTURE. JOURNAL OF ENERGETIC MATERIALS[Internet]. 2013;8(1 (18)):3-15. Available from: https://sid.ir/paper/115389/en

IEEE: Copy

K. MAHMOUDI, and K. MAZAHERI, “UNBURNED GAS POCKETS IN DETONATIONS WITH IRREGULAR STRUCTURE,” JOURNAL OF ENERGETIC MATERIALS, vol. 8, no. 1 (18), pp. 3–15, 2013, [Online]. Available: https://sid.ir/paper/115389/en

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