Flame stabilisation by a highly conductive body: multiple steady-state solutions and time-dependent dynamics

IF 1.9 4区工程技术 Q4 ENERGY & FUELS

Combustion Theory and Modelling Pub Date : 2022-03-10 DOI:10.1080/13647830.2022.2049370

V. Kurdyumov, C. Jiménez

引用次数: 2

Abstract

We present an investigation of the stabilisation of premixed laminar flames by means of an isolated highly conductive bluff-body, a circular cylinder, placed in a uniform flow of a combustible mixture. It is shown that the problem has non-unique steady-state solutions for certain values of the parameters. Moreover, we solve the time-dependent equations to check the stability of the solutions and demonstrate the possibility of controlling the convergence to a certain steady-state solution.

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高导电体的火焰稳定性:多重稳态解决方案和随时间变化的动力学

我们研究了通过将一个孤立的高导电钝体（一个圆柱体）置于可燃混合物的均匀流动中来稳定预混合层流火焰。结果表明，对于某些参数值，该问题具有非唯一稳态解。此外，我们求解了含时方程组，以检查解的稳定性，并证明了将收敛控制到某个稳态解的可能性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Combustion Theory and Modelling 工程技术-工程：化工

CiteScore

3.00

自引率

7.70%

发文量

审稿时长

6 months

期刊介绍： Combustion Theory and Modelling is a leading international journal devoted to the application of mathematical modelling, numerical simulation and experimental techniques to the study of combustion. Articles can cover a wide range of topics, such as: premixed laminar flames, laminar diffusion flames, turbulent combustion, fires, chemical kinetics, pollutant formation, microgravity, materials synthesis, chemical vapour deposition, catalysis, droplet and spray combustion, detonation dynamics, thermal explosions, ignition, energetic materials and propellants, burners and engine combustion. A diverse spectrum of mathematical methods may also be used, including large scale numerical simulation, hybrid computational schemes, front tracking, adaptive mesh refinement, optimized parallel computation, asymptotic methods and singular perturbation techniques, bifurcation theory, optimization methods, dynamical systems theory, cellular automata and discrete methods and probabilistic and statistical methods. Experimental studies that employ intrusive or nonintrusive diagnostics and are published in the Journal should be closely related to theoretical issues, by highlighting fundamental theoretical questions or by providing a sound basis for comparison with theory.