Uncertainties in flow characteristics developed from full scale data

Bryan McElrath, Douglas A. Smith

Research output: Contribution to conferencePaper

Abstract

Uncertainties in the wind flow characteristics contribute to the uncertainty in the load effects experienced by structural members and thus the load factors used in design. Over 1400 15-minute duration records obtained from Texas Tech University's Wind Engineering Research Field Laboratory (WERFL) are used to establish joint and marginal probability density functions and correlations for the flow characteristics. These records were recorded from the 160 foot tower which is currently instrumented at heights of 8, 13, 33, 70, and 160 foot with UVW anemometers. Field measured flow parameters are compared to those given in the literature and in ASCE 7-05. Uncertainties are developed for roughness length, power law exponent, turbulence intensities, and integral scales.

Original languageEnglish
StatePublished - 2005
Event10th Americas Conference on Wind Engineering, ACWE 2005 - Baton Rouge, LA, United States
Duration: May 31 2005Jun 4 2005

Conference

Conference10th Americas Conference on Wind Engineering, ACWE 2005
CountryUnited States
CityBaton Rouge, LA
Period05/31/0506/4/05

Keywords

  • Alpha value
  • Integral scale
  • Probability density function
  • Roughness length
  • Turbulence intensity

Fingerprint Dive into the research topics of 'Uncertainties in flow characteristics developed from full scale data'. Together they form a unique fingerprint.

  • Cite this

    McElrath, B., & Smith, D. A. (2005). Uncertainties in flow characteristics developed from full scale data. Paper presented at 10th Americas Conference on Wind Engineering, ACWE 2005, Baton Rouge, LA, United States.