Effect of the gas flow velocity on the oxygen index of polymer materials

A computational study of low oxygen flammability limit for thick solid slabs

“…Early LOI studies by Finemore and Martin [3] showed that an LOI would be fairly constant within the velocity range 3-12 cm/s, a conclusion which was later questioned by several investigators [4][5][6][7]. Wharton [5] reports several previous investigations on the subject: while some found LOI values to increase nonlinearly with an increase in gas flow velocity, others reported little or no dependence of LOI on gas flow velocity.…”

“…The LOI first increased and then remained approximately constant at higher flow rates. Further, Zhevlakov et al [7] described their LOI-like device for PMMA and fiberglass-reinforced polymer specimens of cross section 0.2 × 0.3 cm and length 15-20 cm. Their observation of flame stabilization was similar to that of Refs.…”