The instability of cylindrically expanding premixed flames with radiative heat loss was studied by two-dimensional unsteady calculations of reactive gases, based on the diffusive-thermal model equation. When the Lewis number was unity, instability phenomena were not observed. When the Lewis number was sufficiently low, on the other hand, cellular-shaped fronts on adiabatic and non-adiabatic cylindrical flames were observed, which was due to diffusive-thermal instability. As radiative heat loss increased, the behavior of cellular fronts became more unstable. This indicated that the radiation promoted the unstable behavior of flame fronts at low Lewis numbers. When radiative heat loss was much large compared with the quenching condition of a planar flame, cylindrical flames were broken up and several small flames appeared. This was in qualitative agreement with the experimental results on the dynamic behavior of lean hydrogen-air premixed flames with radiative heat loss under the low gravity condition. Several small flames appeared on the grounds that large curvature of flame fronts was necessary to keep high temperature against radiative heat loss.
Skip Nav Destination
ASME/JSME 2011 8th Thermal Engineering Joint Conference
March 13–17, 2011
Honolulu, Hawaii, USA
Conference Sponsors:
- Heat Transfer Division
ISBN:
978-0-7918-3892-1
PROCEEDINGS PAPER
Numerical Simulation on the Instability of Cylindrically Expanding Premixed Flames With Radiative Heat Loss at Low Lewis Numbers Available to Purchase
Takafumi Kusakai,
Takafumi Kusakai
Nagaoka University of Technology, Nagaoka, Niigata, Japan
Search for other works by this author on:
Satoshi Kadowaki
Satoshi Kadowaki
Nagaoka University of Technology, Nagaoka, Niigata, Japan
Search for other works by this author on:
Takafumi Kusakai
Nagaoka University of Technology, Nagaoka, Niigata, Japan
Satoshi Kadowaki
Nagaoka University of Technology, Nagaoka, Niigata, Japan
Paper No:
AJTEC2011-44181, T20019; 4 pages
Published Online:
March 1, 2011
Citation
Kusakai, T, & Kadowaki, S. "Numerical Simulation on the Instability of Cylindrically Expanding Premixed Flames With Radiative Heat Loss at Low Lewis Numbers." Proceedings of the ASME/JSME 2011 8th Thermal Engineering Joint Conference. ASME/JSME 2011 8th Thermal Engineering Joint Conference. Honolulu, Hawaii, USA. March 13–17, 2011. T20019. ASME. https://doi.org/10.1115/AJTEC2011-44181
Download citation file:
9
Views
Related Proceedings Papers
Related Articles
Numerical Simulations of a Turbulent High-Pressure Premixed Cooled Jet Flame With the Flamelet Generated Manifolds Technique
J. Eng. Gas Turbines Power (July,2015)
Wind Heat Loss From Corrugated, Transpired Solar Collectors
J. Sol. Energy Eng (August,2002)
A Numerical Study on the Effect of Water Addition on NO Formation in Counterflow CH 4 /Air Premixed Flames
J. Eng. Gas Turbines Power (September,2008)
Related Chapters
Numerical Modeling of N O x Emission in Turbulant Spray Flames Using Thermal and Fuel Models
International Conference on Mechanical and Electrical Technology, 3rd, (ICMET-China 2011), Volumes 1–3
Material Behavior of Case Carburized Bearings Subjected to Standing Contact Loading Conditions
Bearing and Transmission Steels Technology
Introduction
Introduction to Finite Element, Boundary Element, and Meshless Methods: With Applications to Heat Transfer and Fluid Flow