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Numerical Modeling and Experimental Measurements of Water Spray Impact and Transport Over a Cylinder

Published

Author(s)

S. S. Yoon, P E. DesJardin, Cary Presser, J C. Hewson, Charles T. Avedisian

Abstract

This study compares experimental measurements and numerical simulations of liquid droplets over heated and unheated cylinders. The numerical model is based on an unsteady Reynolds-Averaged Navier Stokes (RANS) formulation using a stochastic separated flow (SSF) approach for the droplets that includes submodels for droplet dispersion, heat and mass transfer, and impact on a solid surface. The details of the droplet impact model are presented and the model is used to simulate water spray impingement on a cylinder. Computational results are compared with experimental measurements using phase Doppler interferometry (PDI). Overall, good agreement is observed between predictions and experimental measurements of droplet mean size and velocity downstream of the cylinder.
Citation
International Journal of Multiphase Flow
Volume
32
Issue
1

Keywords

aircraft engine nacelle clutter, droplet transport over a cylinder, fire suppression, halon alternatives, homogeneous turbulent flow, model validation, phase Doppler interferometry

Citation

Yoon, S. , DesJardin, P. , Presser, C. , Hewson, J. and Avedisian, C. (2006), Numerical Modeling and Experimental Measurements of Water Spray Impact and Transport Over a Cylinder, International Journal of Multiphase Flow (Accessed October 6, 2022)
Created December 31, 2005, Updated October 12, 2021