Anemometers help in telling the customers about the weather conditions in the middle of activities like archery, hiking, fishing, camping etc. These devices help in telling the customers who have planned outdoor activities the idea about the weather to come. WTG-Berichte Nr.Anemometer is a device that is used to measure the speed of the wind and the temperature value. Windprobleme in dichtbesiedelten Gebieten. 165–286, Windtechnologische Gesellschaft, Aachen.Īn Introduction to Boundary-Layer Meteorology 241–284, Windtechnologische Gesellschaft, Aachen.Įurocode 1: Basis of design and actions on structures, part 2.4: Wind actions, ENV 1991–2–4. WTG-Merkblatt, Windkanalversuche in der gebäudeaerodynamik: 1995, In: E.J. Ruck, B.: 2001, Efficiency of shelterbelts on mounds, Proceeding of PHYSMOD2001, University of Hamburg.ĪrticleTitleAdiabatic atmospheric boundary layers: A review and analysis of data from the period 1880–1972 and Donat, J.: 2000, Einfluss der Geometrie von Sockelwällen auf die Wirksamkeit von Windschutzpflanzungen, Final Report of DBU research project 12071. JuddĪrticleTitleA wind tunnel study of turbulent flow around single and multiple windbreaks, Part 1: Velocity fieldsĪrticleTitleMultiple windbreaks: an aeolean ensembleĪrticleTitleCalculation of winds disturbed by an array of fences Shelterbelts and windbreaks: mathematical modeling and computer simulations of turbulent flowsĪnnu. , Diploma thesis, ifH, University of Karlsruhe.ĪrticleTitleA numerical simulation of boundary-layer flows near shelterbelts Vergleich der Umströmung von Bä umen in Natur und Modell. Laser Anemometry – Advances and Applications, University of Karlsruhe, pp. Wind tunnel simulation of shelter belt performance. Anstalt für das forstlĪrticleTitleAerodynamic studies of shelterbelts in New Zealand – 1, low to medium height shelterbelts in Mid-CanterburyĪrticleTitleAerodynamic studies of shelterbelts in New Zealand – 2, medium-height to tall shelterbelts in Mid-CanterburyĪrticleTitleShelter effects of vegetation belts – Results of field measurementsĪrticleTitleThe aerodynamic characteristics of windbreaks, resulting in empirical design rulesĪrticleTitleShelter behind two-dimensional solid and porous fencesĪrticleTitleAerodynamische Grundlagen für Windschutzpflanzungen – Der Einfluß der Geometrischen Struktur von Gehölzschutzstreifen auf ihre Schutzwirkung Teil IIĪrticleTitleWind protection by model fences in a simulated atmospheric boundary layer 59, World Meteorological Organization, 188 pp.ĪrticleTitleEffects of windbreak structure on wind flowĪrticleTitleEffects of windbreaks on turbulent transport and microclimateĪrticleTitleEffects of windbreaks on airflow, microclimates and crop yieldsĪrticleTitleWeitere Untersuchungen über die Windverhältnisse im Bereich von Windschutzstreifen Mitteil. Windbreaks and Shelterbelts, Technical Note No. Van Eimern, J., Karschon, R., Razumova, L.A. It is shown that for certain windbreak configurations the wind-protected area in the intermediate field of consecutively arranged windbreaks becomes larger in comparison to a single windbreak. The shelter efficiency of the investigated windbreak systems is compared to that of adequate single line windbreaks. The measurement results are given in the form of contour plots indicating flow quantities and protection volumes between the two windbreaks. Furthermore recirculation zones and the change of kinetic energy are shown. The efficiency of the windbreak systems is assessed by means of protection parameters considering the change of horizontal momentum on bodies immersed in the flow, of pedestrian comfort conditions and of momentum exchange in vertical direction. For each porosity, seven different distances of the two windbreaks between 5 and 25 times the windbreak height were investigated. The porosity of the shelterbelts ranged from 0% to 52%. Using a two-dimensional LDA-System, measurements in an atmospheric boundary layer wind tunnel have been made in the intermediate field of double-arranged, mound-mounted shelterbelts.
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