Naslov
Experiments on flow and turbulence in the climatic wind tunnel

Autori
Plut, Mihael

Vrsta, podvrsta i kategorija rada
Ocjenski radovi, diplomski rad, preddiplomski

Fakultet
Fakultet strojarstva i brodogradnje

Mjesto
Zagreb

Datum
20.09

Godina
2013

Stranica
88

Mentor
Kozmar, Hrvoje

Neposredni voditelj
Pospišil, Stanislav

Ključne riječi
Climatic wind tunnel ; flow characterization ; atmospheric boundary layer simulation ; Centre of Excellence Telč

Sažetak
An extensive set of experiments was carried out in the newly developed Vincenc Strouhal climatic wind tunnel in the Czech Republic in order to characterize flow and turbulence in this facility. This wind tunnel is capable of simulating atmospheric boundary layer flow, cold, solar radiation, rain, icing and a uniform flow with low turbulence. The tests performed in an empty wind-tunnel test section include velocity mapping at different longitudinal positions of the test section in order to investigate flow and turbulence uniformity. The atmospheric boundary layer flow simulated using the Counihan experimental hardware is reasonably uniform in the lateral direction. This indicates that the surface roughness can be successfully applied in creating and sustaining uniform turbulent flow conditions in the wind-tunnel test section. Velocity profile corresponds well to the commonly used power-law with an exponent α equal to 0.28, while the results for turbulence intensity are within the recommended ESDU74031 values for the simulated urban type terrain.

Izvorni jezik
Engleski

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