Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

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



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


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.
International Journal of Multiphase Flow


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


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 June 19, 2024)


If you have any questions about this publication or are having problems accessing it, please contact

Created December 31, 2005, Updated October 12, 2021