Combustion instabilities of swirl combustor with and without center-body air injection; computational studies using LES and IDDES

Marcel Ilie, Matthew Chan, Jackson Asiatico

Research output: Contribution to book or proceedingConference articlepeer-review

Abstract

Combustion instabilities of swirl combustion are subject of analysis in the present research. The computational studies are performed using the large-eddy simulation 5 approach. The computational studies are performed for a Reynolds number (formula presented). Two types of swirl combustors are considered in this study, with and without center-body air injection. The first case represents a regular swirl combustor, while the second type of combustor presents cross-drilled circular opening for additional air mass injection. The purpose of these openings is to enhance the combustion efficiency. However, this may enhance the combustion instabilities and this is subject of investigation in this study. The analysis reveals that there and increase of combustion efficiency when the air mass injectors are used. An increase of CO2 was also observed.

Original languageEnglish
Title of host publicationAIAA Propulsion and Energy Forum, 2021
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624106118
DOIs
StatePublished - 2021
EventAIAA Propulsion and Energy Forum, 2021 - Virtual, Online
Duration: Aug 9 2021Aug 11 2021

Publication series

NameAIAA Propulsion and Energy Forum, 2021

Conference

ConferenceAIAA Propulsion and Energy Forum, 2021
CityVirtual, Online
Period08/9/2108/11/21

Scopus Subject Areas

  • General Energy
  • Aerospace Engineering
  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Mechanical Engineering

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