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Influence On Ambient Air Flow Due to Helical Straking On a Chemical Plant Stack

Thursday, March 25, 2010: 9:20 AM
Bonham C (Grand Hyatt San Antonio)
Eric Peterson1, Morgan Reed2, Jewel Andrew Gomes2 and David L. Cocke2, (1)Scandpower Inc., a member of the Lloyd's Register Group, Houston, TX, (2)Dan F. Smith Department of Chemical Engineering, Lamar University, Beaumont, TX
Extended Abstracts
  • Paper AIChE 2010 Meeting.doc (1.5 MB)

    • Helical straking is added to exhaust stacks to mitigate harmonic oscillations in conjunction with vortex shedding. A secondary aspect appears in the destabilization of airflow in its wake which may promote dispersion. This paper will examine the influence of straking on the airflow around a stack. These results will be used to infer the impact of straking on stack effluents. This will be accomplished via 3 dimensional computer fluid dynamic modeling.

    Extended Abstract: File Uploaded
    See more of this Session: Air Compliance Issues In the Chemical and Refining Industries
    See more of this Group/Topical: Environmental Division