An experimental study of some line fires

✍ Scribed by Li-Ming Yuana; G. Cox

• Publisher: Elsevier Science
• Year: 1996
• Tongue: English
• Weight: 760 KB
• Volume: 27
• Category: Article
• ISSN: 0379-7112
• DOI: 10.1016/s0379-7112(96)00047-1

✦ Synopsis

Flame length, velocity, temperature and mass-flux measurements for some line fires are reported. As would be expected from theoretical considerations, laminar flame lengths are shown to scale as Q4/3 whilst turbulent flames scale as Q2/3. The velocity and temperature data in and above the turbulent flame system are shown to be reduced by a scaling related to flame length in a very similar manner to axisymmetric systems. An interesting adjustment occurs just above the flame tip as the constant velocity associated with the 'intermittent' flame region decays to a new, apparently different constant velocity associated with the non-reacting plume. The air entrainment coefficient deduced for the non-reacting, buoyant plume region in the Boussinesq approximation and assuming Gaussian distributions for horizontal velocity and temperature is O. 13.