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Vertical Wind Profiles in Non-neutral Conditions - Comparison of Models and Measurements from Froya

[+] Author and Article Information
Piotr Domagalski

Institute of Turbomachinery, Lodz University of Technology, Wolczanska 219/223, 90-924, Lodz, Poland
piotr.domagalski@p.lodz.pl

Lars Morten Bardal

Department of Energy and Process Engineering, Norwegian University of Science and Technology, 7491 Trondheim, Norway
lars.m.bardal@ntnu.no

Lars Satran

Department of Energy and Process Engineering, Norwegian University of Science and Technology, 7491 Trondheim, Norway
lars.satran@ntnu.no

1Corresponding author.

ASME doi:10.1115/1.4041816 History: Received September 21, 2017; Revised October 18, 2018

Abstract

This paper presents an analysis of stratification dependent mean velocity profiles measured in a Norwegian coastal wind climate, and its comparison with models available in the literature. For this purpose we use 3 years of observations from a 100 m meteorological mast located at the Fr⊘ya island (150 km west of Trondheim, Norway), equipped with a set of 2D ultrasonic anemometers. The presented analysis is preceded by a general description of the site wind climate, the atmospheric stratification, the surface roughness, and the surface layer height. Finally, the measured wind velocity profile is compared with selected models: the basic power and logarithmic law and the stability-corrected models: stability-corrected logarithmic wind profile, the Panofsky&Dutton model, the Peña boundary layer height corrected model and the correlation based Smedman and Högström model.

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