Investigation of the boundary layer transition, the turbulent boundary layer development and the recovery length of the turbulent boundary layer behind three dimensional roughness elements.

Albayrak, Kahraman


Investigation of wind effects on tall buildings through wind tunnel testing
Kayışoğlu, Bengi; Kurç, Özgür; Department of Civil Engineering (2011)
In recent years, especially in the crowded city-centers where land prizes have become extremely high, tall buildings with more than 30 floors have started to be designed and constructed in Turkey. On the other hand, the technical improvements have provided the opportunity of design and construction of more slender structures which are influenced by the wind actions more. If the building is flexible, wind can interact with it so the wind induced oscillations can be significantly magnified. In order to analyz...
Investigation of solidification and crystallization of iron based bulk amorphous alloys
Erdiller, Emrah Salim; Akdeniz, Mahmut Vedat; Department of Metallurgical and Materials Engineering (2004)
The aim of this study is to form a theoretical model for simulation of glass forming ability of Fe ? Based bulk amorphous alloys, to synthesize Fe ? based multicomponent glassy alloys by using the predictions of the theoretical study, and to analyze the influence of crystallization and solidification kinetics on the microstructural features of this amorphous alloys. For this purpose, first, glass forming ability of Fe ? (Mo, B, Cr, Nb, C) ? X ( X = various alloying elements, selected from the periodic table...
An experimental investigation on the boundary layer development upon a swept flat plate with a zero streamwise pressure gradient and growth of the turbulent boundary layer behind three-dimensional roughness elements.
Çarpınlıoğlu, Melda Özdinç; Göksel, Ömer T.; Department of Mechanical Engineering (1992)
Investigation of the relationship between aerosol and rainwater composition
Türküm, Ahmet; Tuncel, Süleyman Gürdal; Department of Environmental Engineering (2004)
Chemical composition of particles and rain water at three sites in Turkey were extensively compared to determine if there is a relationship between aerosol and rain composition. If such relationship exists, it can allow one to construct rain water composition using aerosol data. This is important because, rain composition data is scarce as sampling and analysis of very low concentrations of elements and ions in rain water is more difficult compared to sampling and analysis of atmospheric aerosol. Results sh...
Investigation of the effect of bending twisting coupling on the loads in wind turbines with superelement blade definition
Gözcü, Mehmet Ozan; Kayran, Altan; Department of Aerospace Engineering (2014)
In this thesis study, the effect of off-axis plies in the spar caps of a wind turbine blade on the damage equivalent loads in a wind turbine system is investigated. The off-axis plies in the spar caps are exploited for load alleviation in the whole turbine system since the off-axis plies induced bending-twisting coupling into blades of wind turbine. Damage equivalent load is used to assess the effect of bend twist coupled blade on the fatigue load reduction in the whole wind turbine system. NREL's 5 MW turb...
Citation Formats
K. Albayrak, “Investigation of the boundary layer transition, the turbulent boundary layer development and the recovery length of the turbulent boundary layer behind three dimensional roughness elements.,” Ph.D. - Doctoral Program, Middle East Technical University, 1984.