Length scale parameterization and stability analyses with different statistical methods in wind measurements için kapak resmi
Length scale parameterization and stability analyses with different statistical methods in wind measurements
Başlık:
Length scale parameterization and stability analyses with different statistical methods in wind measurements
Yazar:
Tuna, Faruk, author.
Yazar Ek Girişi:
Fiziksel Tanımlama:
ix, 57 leaves: color illustrarions, charts;+ 1 computer laser optical disc.
Özet:
When there is an attempt to find vertical wind speed and temperature profile in the absence of stability analysis then the bias is observed in those profiles. Wind profile shape can be estimated from the logarithmic wind speed formula under neutral condition since the diabatic stability term omits at that time and on the contrary, for other stability classes, this term should be derived by numerically or analytically, otherwise, the bias will be increased for wind speed and vertical temperature profiles. In this study, the goal is to give different models and options for the masts where stability analysis can’t be done by using data where comes from conventional masts. Here, different 2 kinds scenarios will be given to see better: Scenario 1: No stability analysis applied. Conventional mast measurements are used where the wind speed measurements are at two different heights, the temperature is from only one location, and wind direction measurements are from wind vanes. Therefore, unwanted occasions occur such as overestimate and underestimate for unstable and stable conditions, respectively. Scenario 2: Stability analysis applied by using the sonic anemometer which provides high-frequency data and vertical wind velocity. After determining diabatic wind term, wind speed can be corrected by implementing diabatic term into profile equation. As a summary, those two scenarios are compared and in order to get correct measurements different models for the conventional masts are given.
Konu Başlığı:
Yazar Ek Girişi:
Tek Biçim Eser Adı:
Thesis (Master)--İzmir Institute of Technology: Energy Engineering.

İzmir Institute of Technology: Energy Engineering--Thesis (Master).
Elektronik Erişim:
Access to Electronic Versiyon.
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