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<div>Ryan,</div>
<div><br></div>
<div>Correct. P1 solutions don't answer the question (y-force<u>
on the vanes</u>). The force solved for in the solutions is the
y-force on the mass in the control volume (down -- which you can see
by inspection since the flow is pushed in that direction). So
the y-force on the vanes (what the problem asked for) is equal and
opposite to this: up.</div>
<div><br></div>
<div>Sorry for not catching this.</div>
<div><br></div>
<div>- Ian</div>
<div><br></div>
<blockquote type="cite" cite>Professor,<br>
<br>
Please explain why the force in P1 part d) is negative when the
vanes<br>
are pushing downwards on the flow implying that the flow is
pushing<br>
upwards on the vanes.<br>
<br>
Just as you showed in recitation today, shouldn't the force on the
vanes<br>
be away from the center of curvature of the vanes? ie towards the 1st
xy<br>
quadrant?<br>
<br>
Ryan</blockquote>
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