Three-dimensional simulation of ionic wind in a laminar premixed Bunsen flame subjected to a transverse DC electric field

Memdouh Belhi, Bok Jik Lee, Min Suk Cha, Hong G. Im

Research output: Contribution to journalArticlepeer-review

28 Scopus citations


The role of the ionic wind effects on modifying flame dynamics was demonstrated by detailed computational models. Full three-dimensional simulations were conducted to reproduce and describe the response of a laminar premixed methane–air Bunsen flame subjected to a transverse DC electric field at saturation condition. The chemical kinetic mechanism employed a methane–air skeletal mechanism with an optimized ionization model to predict the positive and negative ions that are important for generating the electric currents. Given the strong dependence of the ionic wind on the amount of charged species created by chemi-ionization, the ion production rate was optimized to match the measured saturation current. The simulation successfully reproduced the flame tilt toward the cathode. The ionic winds blowing from the flame toward the electrodes in both rightward and leftward directions were also captured. The calculated flow field is qualitatively consistent with the PIV experimental data. Accurate description of the three-body electron attachment to oxygen and the charge transfer reactions generating heavy anions was found to be critical in simulating the flame–electric field interaction. This is a first demonstration of the ionic wind effect by full three-dimensional simulations. Further investigation by both experiment and modeling are required in future work to address quantitative differences.
Original languageEnglish (US)
Pages (from-to)90-106
Number of pages17
JournalCombustion and Flame
StatePublished - Jan 22 2019

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: The research reported in this publication was supported by Competitive Research Funding from King Abdullah University of Science and Technology (KAUST) and made use of the computational resources managed by KAUST Supercomputing Lab (KSL).


Dive into the research topics of 'Three-dimensional simulation of ionic wind in a laminar premixed Bunsen flame subjected to a transverse DC electric field'. Together they form a unique fingerprint.

Cite this