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Recent content by pacamengineers

EN24

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- pacamengineers
- Post #2
- Jun 18, 2003
- Forum: API (American Petroleum Institute) Code Issues
Von Karman vortex shedding strakes on stacks

The stack in question is an unsupported cantilever type but fitted with staggered vertical strakes as per API 560 Clause 9.5.4 (1) rather than spiral (helical) spoilers Clause 9.5.4 (2) but there seems to still be an unexplained driving frequency that causes a larger amplitude in the sway than...
- pacamengineers
- Post #3
- Jun 18, 2003
- Forum: Mechanical engineering general discussion
Von Karman vortex shedding strakes on stacks

Does anyone have a source of the article : Mahajan, Kanti H., “Tall Stack Design Simplified,” Hydrocarbon Processing, p. 217, September 1975 on stack design or some other treatise on stack frequency response and damping
- pacamengineers
- Thread
- Jun 17, 2003
- Replies: 3
- Forum: Mechanical engineering general discussion

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