Further experiments on the stability of laminar and turbulent hydrogen-air flames at reduced pressures

Fine, Burton
naca-tn-3977
April 1957


Stability limits for laminar and turbulent hydrogen-air burner flames were measured as a function of pressure, burner diameter, and composition. On the basis of a simple flame model, turbulent flashback involved a smaller effective penetration distance than laminar flashback. No current theoretical treatment predicts the observed pressure and diameter dependence of laminar and turbulent blowoff.

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