Abstract
AbstractUsing Direct Numerical Simulation, we focus on the development of partial premixing in laminar diffusion flame quenching. Calculations are performed in the configuration of a 2‐D diffusion flame squeezed by a pair of vortices. First, the flame undergoes strong finite rate chemistry effects, linked to high levels of strain rate induced by vorticity. Then quenching develops, leading to edge‐flames. During the creation of the hole within the reaction zone, the response of the laminar diffusion flame burning rate to strain rate variation is investigated. Depending on the flame structure, strong differences between DNS results and the behavior of a steady 1‐D flamelet are observed, on account of partial premixing.
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Schedule a callMore From: ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik
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