Thanks for all the Replies, they decided not to implode the building but rather jack the roof down. If any of you ever happen across any papers on something along the lines of this and think of this thread please post it. I am still interested in what the effects would be.
@DaveC426913 I agree and the roof is actually imploding so that the middle folds in on itself. Though it seems that assuming that the roof is flat and staying parallel to the ground would cause the most drag intern displacing a larger amount of air. I am just trying to get a high level wind...
To be more clear we have a structure near a open frame building that is being imploded. We want to determine what king of wind force if any is imposed on the structure due to the gust caused my the air displaced by the roof falling.
Yes I assume it would be similar to the displacement of air say if you were fanning yourself with a piece of paper. I am just not sure how to calculate it.
Summary: I am looking to determine the velocity of a the gust of air normal to a falling object. Say if you to be standing next to an open frame building with a flat roof then take away all the columns and let the roof free fall. What kind of wind velocity would you experience.
I am looking to...