A numerical study on the structure of non-premixed tubular flames

Recently, tubular flames are considered due to their advantageous in geometry of the flame. The major importance of tubular flame which makes it different from other flames is its uniform temperature distribution. Therefore, it may reduce the formation of thermal fluctuations and hot spots along the furnaces. In this paper, a non-premixed tubular flame is simulated with Methane as fuel. Numerical results are validated against the experimental measurements. The structure of the tubular flame in the middle of the combustion chamber is investigated. Two types of chemical mechanism including global and DRM22 are evaluated.