Stack Design
The design of large stacks poses considerable engineering challenges. Vortex shedding in high winds can cause dangerous oscillations in the stack, and may lead to its collapse. The use of helical faring is common to prevent this process occurring at or close to the resonant frequency of the stack.
Read more about this topic: Flue-gas Stack
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—Ralph Waldo Emerson (1803–1882)
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—Ralph Waldo Emerson (1803–1882)