Towards Resolving an Idealized Fire Sprinkler Atomization Pattern with VOF Modeling and Adaptive Mesh Refinement (CROSBI ID 665862)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Meredith, Karl ; Vukčević, Vuko
engleski
Towards Resolving an Idealized Fire Sprinkler Atomization Pattern with VOF Modeling and Adaptive Mesh Refinement
This study presents the progress towards resolving the atomization pattern of an idealized fire sprinkler by using volume of fluid (VOF) modeling. Numerical modeling has been applied to understanding the atomization behavior of an idealized sprinkler geometry consisting of a 9.5 mm inner diameter cylindrical nozzle and a flat, 25.4 mm diameter disk with a liquid flow rate of 0.71 L/s. The simulations have been performed with foam -extend-4.1 (a community driven fork of the OpenFOAM CFD software), using the ghost fluid scheme and the isoAdvector scheme for interfacial reconstruction. In order to achieve efficient computations and adequately resolve the flow, a newly implemented adaptive mesh refinement (AMR) scheme has been used. Comparisons of the liquid sheet breakup behavior in the near vicinity of the disk are shown for various AMR criteria. The computational efficiency is analyzed. This study represents a first step towards using AMR coupled with VOF modeling to adequately obtain injection patterns, and provides a path to subsequently simulate realistic sprinkler geometries.
Fire suppression, primary atomization, volume of fluid, adaptive mesh refinement
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Podaci o prilogu
11
2018.
objavljeno
Podaci o matičnoj publikaciji
14th International Conference on Liquid Atomization and Spray Systems
Podaci o skupu
14th International Conference on Liquid Atomization and Spray Systems
predavanje
22.07.2018-26.07.2018
Chicago (IL), Sjedinjene Američke Države