January 1, 2005
      
                  
        
  Author(s)
  F  Takahashi,   Gregory T.  Linteris,   V  Katta
 
       
            
    
    
        The effects of oxidizer stream velocity and oxygen concentration, as well as gravity and pressure, on the extinguishment limits of laminar co-flow diffusion flames of methane, formed in a cup-burner apparatus, have been studied experimentally and