European Turbulence Conference 14

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Budgets of turbulent kinetic energy and scalar variance in the self-similar region of a round jet

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The budgets of turbulent kinetic energy and variance of passive scalar fluctuations are presented in the self similar region of a fully developped turbulent round jet. LDV and cold-wire thermometry were simultaneously used to determined these budgets in the same flow conditions. It is shown that scalar dissipation reaches self preservation at x/D = 25 and scales as x^{-4} with a constant Kepsilon_theta= 14.9.


Jean Lemay    
Université Laval
Cape Verde

Azemi Benaissa    
Royal Military College of Canada

Alexis Darisse    
Université Laval


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