The large structure of flow. Existence of these

The
first research in the pulsed impingement jet has been performed by Nevins and
Ball, they studied on the heat transfer of one pulsed jet on the flat surface
and showed that heat transfer rate of pulsed jet is nearly equal with steady
state impingement jet. Tests for Reynolds number 12000.26 and increase by 100% in heat transfer was reported.  But Silver at el 6 use
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