Next Article in Journal
Core Abilities Evaluation Index System Exploration and Empirical Study on Distributed PV-Generation Projects
Previous Article in Journal
Modelling the Small Throw Fault Effect on the Stability of a Mining Roadway and Its Verification by In Situ Investigation
Article Menu
Issue 12 (December) cover image

Export Article

Open AccessArticle
Energies 2017, 10(12), 2081; doi:10.3390/en10122081

Large Eddy Simulation Analysis on Confined Swirling Flows in a Gas Turbine Swirl Burner

State Key Laboratory of Engines, Tianjin University, Tianjin 300072, China
Internal Combustion Engine Reserch Institute, Tianjin University, Tianjin 300072, China
Telfer School of Management, University of Ottawa, Ottawa, ON K1N 6N5, Canada
School of Energy and Power Engineering, Beihang University, Beijing 100083, China
Faculty of Creative Arts, Technologies and Science, University of Bedfordshire, Luton LU1 3JU, UK
Authors to whom correspondence should be addressed.
Received: 12 October 2017 / Revised: 13 November 2017 / Accepted: 20 November 2017 / Published: 7 December 2017
(This article belongs to the Section Energy Fundamentals and Conversion)
View Full-Text   |   Download PDF [21348 KB, uploaded 9 December 2017]   |  


This paper describes a Large Eddy Simulation (LES) investigation into flow fields in a model gas turbine combustor equipped with a swirl burner. A probability density function was used to describe the interaction physics of chemical reaction and turbulent flow as liquid fuel was directly injected into the combustion chamber and rapidly mixed with the swirling air. Simulation results showed that heat release during combustion accelerated the axial velocity motion and made the recirculation zone more compact. As the combustion was taking place under lean burn conditions, NO emissions was less than 10 ppm. Finally, the effects of outlet contraction on swirling flows and combustion instability were investigated. Results suggest that contracted outlet can enhance the generation of a Central Vortex Core (CVC) flow structure. As peak RMS of velocity fluctuation profiles at center-line suggested the turbulent instability can be enhanced by CVC motion, the Power Spectrum Density (PSD) amplitude also explained that the oscillation at CVC position was greater than other places. Both evidences demonstrated that outlet contraction can increase the instability of the central field. View Full-Text
Keywords: swirl burner; swirl flow; central vortex core; large-eddy simulation; outlet contraction swirl burner; swirl flow; central vortex core; large-eddy simulation; outlet contraction

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Liu, T.; Bai, F.; Zhao, Z.; Lin, Y.; Du, Q.; Peng, Z. Large Eddy Simulation Analysis on Confined Swirling Flows in a Gas Turbine Swirl Burner. Energies 2017, 10, 2081.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top