@inproceedings{fc48a450dc954bf7ab565464a850d1e5,
title = "Characteristics of planar counter current shear flow in dump geometry",
abstract = "Countercurrent shear can be used in engineering applications to control flow structure and mixing. In the present paper a planar countercurrent shear flow is studied numerically using Large Eddy Simulation. Mean flow characteristics at a primary-jet Reynolds number of 14700 are studied for three values of a key parameter, the secondary to primary jet mass flow ratio (m s /m p), chosen to match reported measurements. The predicted flow results of time averaged flow field, Strouhal number and turbulence characteristics are compared with the experimentally available data. A change in instability modes is observed at mass flow ratios above m s /m p = 0.27 with more than 100% increase in the turbulence levels and distinct changes in spectral characteristics. Detailed spectral records along with landau modeling are used as evidence of existence of self excited global mode beyond a critical velocity ratio i n the flow.",
author = "Prasad Kalghatgi and Sumanta Acharya and Strykowski, {Paul J} and Anderson, {Matt J}",
year = "2011",
month = dec,
day = "1",
language = "English (US)",
isbn = "9780791854877",
series = "ASME 2011 International Mechanical Engineering Congress and Exposition, IMECE 2011",
pages = "109--119",
booktitle = "ASME 2011 International Mechanical Engineering Congress and Exposition, IMECE 2011",
note = "ASME 2011 International Mechanical Engineering Congress and Exposition, IMECE 2011 ; Conference date: 11-11-2011 Through 17-11-2011",
}