A Numerical Study of Opposed Nonpremixed Tubular Flames with Radiative Heat Loss

복사열손실이 있는 비예혼합 튜브형 화염에 관한 수치 해석적 연구

The characteristics of opposed nonpremixed tubular flames with radiation heat loss are investigated using linear stability analysis and 2-D numerical simulations. Two extinction limits, as the $Damk{\ddot{o}}hler$ number is small or large, are confirmed using finite difference method with a simple continuation method. It is verified that the results of linear stability analysis predict the number of flame cells and the critical Da starting cellular instability or amplification of temperature near both extinction limits with good resolution.