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In the present investigations, effect of streamwise end wall fences on the performance improvement of a turbine is
studied. The fences with heights of 12 mm, 16 mm were attached normal to the end wall and at a half pitch away
from the blades. A miniaturized pressure probe was traversed at the exit of the cascade from midspan to the end wall
at 26 locations covering more points in the end wall region. For each spanwise location, the probe was traversed in
the pitchwise direction for more than 25 points covering one blade pitch. The boundary layer fence near the end wall
remains effective in changing the path of pressure side of leg of horseshoe and weaken the cross flow. The overturn
in flow has reduced near the end wall when fences are incorporated while outside end wall and in loss core region, it
underturns slightly as result of reduction in secondary loss. The total loss is reduced by 15%, 25% for fences of
height 12 mm, and 16 mm respectively. The corresponding change was obtained in the drag and lift coefficients.
