Journal
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Volume 36, Issue 1, Pages 1447-1455Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.proci.2016.06.138
Keywords
Laminar flame; Experimental combustion; DNS; Rotating cylinder
Funding
- European Research Council under European Union/ERC [ERC-AdG 319067-INTECOCIS]
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This paper investigates the stabilization of a laminar premixed flame on a rotating cylinder. Experiments and DNS are combined to analyze the effects of rotation rate on the flow topology and flame stabilization. Both experiment and simulation reveal that the usual stabilization pattern (two symmetric flame roots on both sides of the cylinder) is strongly affected by rotation. The flame roots position on the upper and lower sides of the cylinder are modified with increasing rotation speeds. One of the two flame roots is quenched over a long region. The distance between the flame roots and the flameholder changes with the rotation speed until a bifurcation takes place: at a critical rotation speed, the flame roots merge, and the flame stabilizes upstream of the cylinder. DNS results are used to explain the flame topologies observed experimentally. (C) 2016 by The Combustion Institute. Published by Elsevier Inc.
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