Local effects in vortex-flame interactions: Implications for turbulent premixed flame scaling and observables

Luna, Steven; Egolfopoulos, Fokion N.

doi:10.1016/j.combustflame.2022.112293

Cited by 4 publications

(1 citation statement)

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“…No matter what kind of instability is described, it can reflect the change of pressure and density gradient in the pipeline, resulting in significant changes in flow fields such as flow and combustion. It is also such gradient changes that eventually lead to the emergence of vortex structures of varying intensity in the tube [6] , and the intensity distribution of vortex structures in the tube and the obstruction rate of the obstacle show a positive correlation [7] , and eventually also change the flame structure [8] . At present, on the obstacles, flame, combustible gas combustion rate, and the interrelationship of explosion overpressure, people have conducted a lot of research.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the inhomogeneous LPG-air flow field in a tube containing mixed obstructions

Gao,

Wu,

Shao

et al. 2023

J. Phys.: Conf. Ser.

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Based on numerical simulation, this paper further investigates the flow field structure near the obstacle during the premixed gas deflagration. In the deflagration flow field, the pressure gradient variation and vortex structure intensity in the upper surface region of the obstacle are larger, indicating that the pressure gradient has a stronger effect on the vortex structure. The changes in density gradients and pressure gradients induced by the combined rectangular, flat barrier configuration will be more pronounced than in the model with only flat barriers. This change in turn acts back on the combustion field, which in turn has a strong perturbative effect on the flame.

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Section: Introductionmentioning

confidence: 99%