الفهرس 
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Abstract
the field of an axisymmetric turbulent jet number ~ 104) have been experimentally experimental set.up was designed and built
the mean and fluctuating
An Ar. ion laser the velocities in the simultaneously. The using a digital counter analysed using an on-line with the equipment. A of the equipment and setting for further reference, especially this
attempt to use the laser equipment in
university. A total of seven upstream initial are produced by different arrangements of
a baffle plate and nozzle shapes. Centerl ine and of the longitudinal and radial fluctuating veloci ties are obtained. The resul ts the mean and turbulence quanti ties in the near functions of the initial upstream flow For the cases studied, the decay rates of the mean longitudinal velocity is higher when no screens are installed in the settling chamber
higher turbulence intensi ties), and the higher. This implies that it is the
small dissipative turbulence,
of streamwise momentum higher decay rates