Uncertainties in flow characteristics developed from full scale data

Bryan McElrath; Douglas A. Smith

Uncertainties in flow characteristics developed from full scale data

National Wind Institute

Research output: Contribution to conference › Paper › peer-review

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 language	English
State	Published - 2005
Event	10th Americas Conference on Wind Engineering, ACWE 2005 - Baton Rouge, LA, United States Duration: May 31 2005 → Jun 4 2005

Conference

Conference	10th Americas Conference on Wind Engineering, ACWE 2005
Country/Territory	United States
City	Baton Rouge, LA
Period	05/31/05 → 06/4/05

Keywords

Alpha value
Integral scale
Probability density function
Roughness length
Turbulence intensity

Cite this

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title = "Uncertainties in flow characteristics developed from full scale data",

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.",

keywords = "Alpha value, Integral scale, Probability density function, Roughness length, Turbulence intensity",

author = "Bryan McElrath and Smith, {Douglas A.}",

year = "2005",

language = "English",

note = "10th Americas Conference on Wind Engineering, ACWE 2005 ; Conference date: 31-05-2005 Through 04-06-2005",

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TY - CONF

T1 - Uncertainties in flow characteristics developed from full scale data

AU - McElrath, Bryan

AU - Smith, Douglas A.

PY - 2005

Y1 - 2005

N2 - 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.

AB - 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.

KW - Alpha value

KW - Integral scale

KW - Probability density function

KW - Roughness length

KW - Turbulence intensity

UR - http://www.scopus.com/inward/record.url?scp=84886904160&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:84886904160

T2 - 10th Americas Conference on Wind Engineering, ACWE 2005

Y2 - 31 May 2005 through 4 June 2005

ER -

Uncertainties in flow characteristics developed from full scale data

Abstract

Conference

Keywords

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Cite this