Open Access

ARTICLE

Droplet Behavior within an LPP Ambiance

by M. Chrigui¹, L. Schneider¹, A. Zghal², A. Sadiki¹, J. Janicka¹

1 Institute for Energy and Powerplant Technology, Department of Mechanical Engineering, Technische Universität Darmstadt, Germany
2 Laboratory of Mechanics, Solids, Structures and Technological Development, ESSTT, Tunisia

Fluid Dynamics & Materials Processing 2010, 6(4), 399-408. https://doi.org/10.3970/fdmp.2010.006.399

Abstract

This paper deals with the numerical simulation of droplet dispersion and evaporation within an LPP (Lean Premix Prevaporized) burner. The Eulerian-Lagrangian approach was used for this purpose, and a fully two way-coupling was accounted for. For the phase transition, a non-equilibrium evaporation model was applied that differs strongly from the equilibrium one where there are high evaporation rates. The non-equilibrium conditions were fulfilled in the investigated configuration, as the droplets at the inlet had a mean diameter of 50mm. The numerical results of water droplet velocities, corresponding fluctuations, and diameters were compared with experimental data. Good agreement was found.

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Keywords

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