Search Results - subject:"Wind velocity"

Fitting the power spectrum of stationary random sequence

Zhang, Chang-qing; Liu, Zhan-wen; Xu, Zhi-gang - In: International journal of information technology and … 19 (2020) 2/3, pp. 118-125

Persistent link: https://www.econbiz.de/10012199855

Effects of individual climatic parameters on the infrared thermography of buildings

Lehmann, B.; Ghazi Wakili, K.; Frank, Th.; Vera Collado, B. - In: Applied Energy 110 (2013) C, pp. 29-43

Infrared thermography is an affordable, fast and hence widespread method to detect temperature distributions on the external surfaces of buildings. The interpretation of obtained thermal images requires the knowledge of the status of a multitude of climatic parameters preceding the thermography...

Persistent link: https://www.econbiz.de/10010678762

Cascade-like and scaling behavior of wind velocity increments in the atmospheric surface layer

Liu, Lei; Hu, Fei - In: Physica A: Statistical Mechanics and its Applications 392 (2013) 23, pp. 5808-5816

functions (PDFs), the probability of return and the moments of wind velocity increments. Results show that the PDFs change from … for quantitatively describing the random process of wind velocity increments. …

Persistent link: https://www.econbiz.de/10010703204

Measurement and simulation of sand saltation movement under fluctuating wind in a natural field environment

Shi, Feng; Huang, Ning - In: Physica A: Statistical Mechanics and its Applications 391 (2012) 3, pp. 474-484

, such as fluctuating wind velocity in the near surface region, sand transport intensity, temperature, and humidity, with the …, such as the fluctuating wind velocity, temperature, and humidity, was studied. On the basis of the field observation …

Persistent link: https://www.econbiz.de/10010873052

Velocity and power density analysis of the wind at Letšeng-la-terae in Lesotho

Mathaba, Tebello; Mpholo, Moeketsi; Letuma, Mosuoe - In: Renewable Energy 46 (2012) C, pp. 210-217

The wind profile of Letšeng-la-Terae in Lesotho is analyzed using a 2-year data of 10-min averages. Wind velocity …

Persistent link: https://www.econbiz.de/10011044633

Heuristic and probabilistic wind power availability estimation procedures: Improved tools for technology and site selection

Nigim, K.A.; Parker, Paul - In: Renewable Energy 32 (2007) 4, pp. 638-648

The paper describes two investigative procedures to estimate wind power from measured wind velocities. Wind velocity … its probable energy capturing profile. This profile of wind enables the probable maximum operating wind velocity profile … and grouping of the measured wind velocity data taken at different time intervals and hub heights. The second procedure is …

Persistent link: https://www.econbiz.de/10010805217

Wind velocity and rotor position sensorless maximum power point tracking control for wind generation system

Senjyu, Tomonobu; Tamaki, Satoshi; Muhando, Endusa; … - In: Renewable Energy 31 (2006) 11, pp. 1764-1775

at an optimal rotor speed. For that purpose, a rotor position and a wind velocity sensors become indispensable. However …, from the aspect of reliability and increase in cost, rotor position sensor and wind velocity sensor are not usually … preferred. Hence, wind velocity and position sensorless operating method for wind generation system using observer is proposed …

Persistent link: https://www.econbiz.de/10010807029

Calculation of the separation streamlines of barchans and transverse dunes

Herrmann, H.J.; Andrade, J.S.; Schatz, V.; Sauermann, G.; … - In: Physica A: Statistical Mechanics and its Applications 357 (2005) 1, pp. 44-49

We use FLUENT to calculate the wind profile over barchans and transverse dunes. The form of the streamlines of flow separation at the lee side of the dunes is determined for a symmetric barchan dune in three dimensions, and for the height profile of a measured transverse dune field in the...

Persistent link: https://www.econbiz.de/10011062770

Storm Protection by Mangroves in Orissa: An Analysis of the 1999 Super Cyclone

Das, Saudamini - The South Asian Network for Development and …

This study assesses the storm protection role afforded by mangroves. It uses data on human casualties, damages to houses and livestock losses suffered in the Kendrapada district of the State of Orissa during the super cyclone of October 1999. The cyclone (of T 7 category) devastated 12 of the 30...

Persistent link: https://www.econbiz.de/10011094148