Free stream turbulence induced disturbances in boundary layers with wall suction
S Yoshioka, JHM Fransson, PH Alfredsson - Physics of fluids, 2004 - pubs.aip.org
An experimental investigation of free stream turbulence (FST) induced disturbances in
asymptotic suction boundary layers (ASBL) has been performed. In the present study four
different suction rates are used and the highest is 0.40% of the free stream velocity, together
with three different FST levels (Tu= 1.6, 2.0, and 2.3%). A turbulence generating grid of the
active type is used and offers the possibility to vary the Tu-level while the scales of the
turbulence remain almost constant. It is known that FST induces elongated disturbances …
asymptotic suction boundary layers (ASBL) has been performed. In the present study four
different suction rates are used and the highest is 0.40% of the free stream velocity, together
with three different FST levels (Tu= 1.6, 2.0, and 2.3%). A turbulence generating grid of the
active type is used and offers the possibility to vary the Tu-level while the scales of the
turbulence remain almost constant. It is known that FST induces elongated disturbances …
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