changing wind direction ?

• by ElisabethB

  The fan at the top has a strange shape.
  Caused by changing wind directions?

  Posted May 4, 2013 3:36 PM

• by Kitharode moderator

  Not as definate as some, but there does seem to be some wind change involved. These types of fans/blotches always make me ask whether the venting is from a point source or a linear vent.

  Posted May 4, 2013 8:24 PM