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.

Investigation of Velocity Boundary Conditions in Counterflow Flames



W C. Park, Anthony Hamins


The effects of velocity boundary conditions on the structure of methane-air nonpremixed counterflow flames were investigated by two-dimensional numerical simulation. Two low global strain rates, 12 s-1 and 20 s-1, were considered for comparison with measurements. Buoyancy was confirmed to have strong effects on the flame structure at a low global strain rate. It was shown that the location where a top hat velocity profile was imposed is sensitive to the flame structure, and that the computed temperature along the centerline grees well with the measurements when plug flow was imposed at the inner surface of the screen nearest the duct exit.
Ksme International Journal
No. 2


counterflow flames, combustion models, methodology, velocity


Park, W. and Hamins, A. (2002), Investigation of Velocity Boundary Conditions in Counterflow Flames, Ksme International Journal, [online], (Accessed June 21, 2024)


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

Created December 31, 2001, Updated October 12, 2021