Numerical issues in modeling combustion instability by quasi-1D Euler equations | Zendy

Maria Luisa Frezzotti | Zendy; Simone D’Alessandro | Zendy; Bernardo Favini | Zendy; Francesco Nasuti | Zendy

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Numerical issues in modeling combustion instability by quasi-1D Euler equations

Author(s) -

Maria Luisa Frezzotti,

Simone D’Alessandro,

Bernardo Favini,

Francesco Nasuti

Publication year - 2017

Publication title -

international journal of spray and combustion dynamics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.614

H-Index - 16

eISSN - 1756-8285

pISSN - 1756-8277

DOI - 10.1177/1756827717711015

Subject(s) - instability , eulerian path , combustion , euler equations , nonlinear system , limit (mathematics) , mathematics , flow (mathematics) , mechanics , solver , work (physics) , limit cycle , computer science , computer simulation , parametric statistics , physics , lagrangian , mathematical analysis , thermodynamics , programming language , chemistry , statistics , organic chemistry , quantum mechanics

The present work is devoted to investigation of numerical issues related to combustion instability simulation through a quasi-1D Eulerian solver. The main aspects addressed are the choice of a suitable multispecies model and heat release response function formulation. Experimental data and high fidelity simulation results, available in literature, are reproduced with acceptable approximation. Main features of the flow field at limit cycle are shown. Moreover, a parametric study has been performed on time-lag response function characteristic parameters, leading to important conclusions on the pertinence of each assumption in the frame of a nonlinear tool

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