2021/04/24 by Peter V. Gordon, Gordon, Peter V., Leonid Kagan +3
Engineering · Physics and Astronomy · #Combustion and Detonation Processes #Energetic Materials and Combustion #FOS: Physical sciences #Fluid Dynamics (physics.flu-dyn) #High Energy Astrophysical Phenomena (astro-ph.HE) #Laser-Plasma Interactions and Diagnostics
paper · pdf · doi:10.48550/arxiv.2104.12002
openalex publication_date 2021/04/24 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The paper is concerned with identification of the key mechanisms controlling deflagration-to-detonation transition in stellar medium. The issue of thermal runaway triggered by positive feedback between the advancing flame and the flame-driven precompression is discussed in the framework of a one-dimensional flame-folding model. The paper is an extension of the authors' previous study dealing with the non-stoichiometric fusion, fuel → products, kinetics (Phys.Rev.E, 103(2021)) over physically more relevant, fuel+fuel → products, kinetics. Despite this change the runaway effect endures. The transition occurs prior to merging of the flame with the flame-supported precursor shock, i.e. the pretransition flame does not reach the threshold of Chapman-Jouguet deflagration.