Comparison of Length Scale Parameterization Methodologies

Energies

Ferhat Bingöl¹  Faruk Tuna² 

[1] Department of Energy Systems Engineering, Office No:128, Izmir Institute of Technology, 35430 Izmir, Turkey;Energy Engineering Programme, Izmir Institute of Technology, 35430 Izmir, Turkey;

关键词: atmospheric stability;    length scale;    wind shear exponent;   

DOI  :  10.3390/en13010089

来源: DOAJ

【 摘 要 】

Atmospheric stability has been studied for decades. There are several methodologies that evolved over the years. In this study, a special experimental meteorological mast that has been erected to a complex site has been used to calculate dimensionless Obukhov length ( $\zeta =\frac{z}{L})$ , dimensionless momentum ( ${\phi }_m$ ), and heat coefficients ( ${\phi }_h$ ). The results are compared with the ones from average value approaches: Richardson number, flux-profile (F-P) relations, and wind shear exponent methods. The results show that the estimated $\zeta$ values, using the bulk Richardson number, get along well with the reference $\zeta$ within the neutral and stable regimes. F-P relations and wind shear exponent methods result in the best agreement for stable and neutral regimes. Nevertheless, average oriented methods are not reliable for the other regimes.

【 授权许可】

Unknown