BIG ASS FANS Powerfoil 8 Installation Manual page 17

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12'–24' POWERFOIL 8, 12'–24' POWERFOIL 8PLUS
Pre-Installation (cont.)
to the low pressure area above the fan where
creates a convection-like air current that gathers
momentum. Once this current is established,
the fan begins to move air outside of the
current, escalating its cooling effects.
Where there are multiple fans appropriately
spaced, the expanding jets of adjacent fans
meet to create a pressure zone. The pressure
zone acts like a wall, causing each fan to
behave like a single enclosed fan. Typically,
a single fan's performance will increase when
working in conjunction with other fans.
Overhead View
horizontally moving air. Thin or streamlined
smoothly around these obstructions, losing little
momentum, and leaving only a small stagnant
area behind the obstruction.
Side View
the air to change direction, turning upward and
outward. There is a stagnant area behind these
obstructions that is wider and higher than the
obstructions themselves.
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