Abstract
Linear stability analysis of radiating counterflow diffusion flames is numerically conducted to examine the instability characteristics of cellular patterns. Lewis number is assumed to be 0.5 to consider diffusional-thermal instability. Near kinetic limit extinction regime, growth rates of disturbances always have real eigenvalues and neutral stability condition of planar disturbances perfectly falls into quasi-steady extinction. Cellular instability of disturbance with transverse direction occurs just before steady extinction. However, near radiative limit extinction regime, the eigenvalues are complex and pulsating instability of planar disturbances appears prior to steady extinction. Cellular instability occurs before the onset of planar pulsating instability, which means the extension of flammability
| Translated title of the contribution | Linear Stability Analysis of Cellular Counterflow Diffusion Flames with Radiation Heat Loss |
|---|---|
| Original language | Korean |
| Pages (from-to) | 42-50 |
| Number of pages | 9 |
| Journal | 한국연소학회지 |
| Volume | 18 |
| Issue number | 2 |
| State | Published - Jul 2013 |