Mousavi, S. M., Kamali, R., Sotoudeh, F., Pourabidi, R., Karimi, N. and Jeung, I.-S. (2019) A comprehensive investigation of acoustic power level in a moderate or intense low oxygen dilution in a jet-in-hot-coflow under various working conditions. Aerospace Science and Technology, 93, 105339. (doi: 10.1016/j.ast.2019.105339)
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192788.pdf - Accepted Version Available under License Creative Commons Attribution Non-commercial No Derivatives. 1MB |
Abstract
Reducing the level of noise emission is an important requirement in modern propulsion and power generation. This requires gaining a deeper understanding of the underlying physics and identifying the key parameters dominating noise generation in modern combustion technologies. Thus, this paper investigates the effect of several working parameters on moderate or intense low oxygen dilution (MILD) combustion noise. A finite volume solver, GRI-Mech 2.11 with 247 reactions and 49 species, k-ε RNG turbulence model as well as the EDC model are used to develop a computational model of the reactive flow, while the volume fraction and time scale constants are set to 3 and 1, respectively. After validating the numerical method by comparison with the experimental data, MILD combustion is simulated under various conditions to study the noise emission. The results show that modifying the inlet conditions such as changes in species mass fractions, inlet temperature, and inlet Reynolds number alter the acoustic power level through variations in heat release.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Karimi, Dr Nader |
| Authors: | Mousavi, S. M., Kamali, R., Sotoudeh, F., Pourabidi, R., Karimi, N., and Jeung, I.-S. |
| College/School: | College of Science and Engineering > School of Engineering > Systems Power and Energy |
| Journal Name: | Aerospace Science and Technology |
| Publisher: | Elsevier |
| ISSN: | 1270-9638 |
| ISSN (Online): | 1626-3219 |
| Published Online: | 14 August 2019 |
| Copyright Holders: | Copyright © 2019 Elsevier Masson SAS |
| First Published: | First published in Aerospace Science and Technology 93:105339 |
| Publisher Policy: | Reproduced in accordance with the publisher copyright policy |
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