Relations between structure functions of velocity and temperature in a turbulent jet
Abstract
Measurements of the longitudinal velocity fluctuation and the temperature fluctuation on the centreline of a turbulent plane jet are used to obtain second and third order longitudinal velocity, temperature and velocitytemperature structure functions. Kolmogorov's equation for velocity structure functions is satisfied only for separations that lie well within the viscous range. The analogous equation, obtained by Yaglom, for the temperature field is satisfied for separations which extend up to the beginning of the inertial range. The difference between the measurements and the equations is discussed in the context of local isotropy and its implications on the inertial range constants are considered.
 Publication:

Experiments in Fluids
 Pub Date:
 December 1983
 DOI:
 10.1007/BF00266472
 Bibcode:
 1983ExFl....1..213A
 Keywords:

 Flow Measurement;
 Functions (Mathematics);
 Temperature Distribution;
 Turbulent Jets;
 Velocity Distribution;
 Computational Fluid Dynamics;
 Flow Equations;
 Kolmogoroff Theory;
 Separated Flow;
 Viscous Flow;
 Fluid Mechanics and Heat Transfer;
 Temperature Field;
 Structure Function;
 Isotropy;
 Temperature Fluctuation;
 Velocity Fluctuation