Results 341 to 350 of about 346,306 (411)
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Transonic wind tunnel test sections
ZAMP Zeitschrift für angewandte Mathematik und Physik, 1956Um von Windkanalversuchen auf die Verhaltnisse beim freien Flug schliessen zu konnen, mussen die Einflusse der Kanalwande auf die Geschwindigkeitsverteilung am Modell berucksichtigt werden. Bei schallnaher Stromung sind diese Einflusse an Modellen ublicher Grosse so stark, dass sie die Messungen vollstandig verfalschen.
Maeder, Paul F., Wood, Albert D.
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Aeroacoustic Wind Tunnel Tests of Wind Turbine Airfoils
10th AIAA/CEAS Aeroacoustics Conference, 2004Aeroacoustic wind tunnel tests were performed for six airfoils that are candidates for use on small wind turbines. One additional airfoil (NACA 0012) was tested for comparison to benchmark data. The acoustic measurements were performed in NLR's Small Anechoic Wind Tunnel, for a range of wind speeds ( U) and angles of attack, with and without boundary ...
Stefan Oerlemans, Paul Migliore
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Wind-Tunnel Testing of Structures
Journal of the Engineering Mechanics Division, 1977Civil engineers, architects, and city planners are beginning to use design data derived from wind-tunnel tests as extensively as aeronautical engineers have for many years. This evolution of wind engineering has been made possible by development of special meteorological wind tunnels that simulate essential characteristics of natural boundary-layer ...
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Wind Tunnel Tests for Wind-Excited Benchmark Building
Journal of Engineering Mechanics, 2004This paper presents an overview of the wind tunnel studies conducted at the boundary layer wind tunnel facility at the University of Sydney to determine across-wind forces acting on the 76-story 306 m high benchmark building. The paper briefly describes the boundary layer wind tunnel and its special features, and then presents the testing procedures ...
Samali, B. +3 more
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1990
Abstract From the preceding chapters it has become obvious that a purely theoretical treatment of most transonic problems is not possible, at least today. For a reasonable assurance of the accuracy of the theoretical results, comparisons with test data are still a necessity. Data for this purpose may be obtained from free-flight tests or
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Abstract From the preceding chapters it has become obvious that a purely theoretical treatment of most transonic problems is not possible, at least today. For a reasonable assurance of the accuracy of the theoretical results, comparisons with test data are still a necessity. Data for this purpose may be obtained from free-flight tests or
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Fourth Annual IEEE Semiconductor Thermal and Temperature Measurement Symposium, 1988
An introduction to wind tunnel design, wind tunnel data uncertainty analysis, and nondimensional presentation of measured data is presented. The primary components of a wind tunnel and the purposes of each are discussed. The importance of delivering uniform flow to the test section cross section is considered with regard to the effect of nonuniform ...
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An introduction to wind tunnel design, wind tunnel data uncertainty analysis, and nondimensional presentation of measured data is presented. The primary components of a wind tunnel and the purposes of each are discussed. The importance of delivering uniform flow to the test section cross section is considered with regard to the effect of nonuniform ...
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1971
Abstract : Extensive parafoil wind tunnel tests were carried out. Parafoil model sizes ranged from .09 sq ft to 147 sq ft and parafoil aspect ratios ranged from .5 to 3.0. The wind tunnel test velocities ranged from approximately 20 ft per second to over 60 ft per second. The aerodynamic stability coefficients were measured.
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Abstract : Extensive parafoil wind tunnel tests were carried out. Parafoil model sizes ranged from .09 sq ft to 147 sq ft and parafoil aspect ratios ranged from .5 to 3.0. The wind tunnel test velocities ranged from approximately 20 ft per second to over 60 ft per second. The aerodynamic stability coefficients were measured.
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Modular asymmetric parachute for wind tunnel testing
Journal of Aircraft, 1981The construction of a series of asymmetrical wind tunnel model parachutes designed to a modular concept is described. The static force, inflation force, and dynamic force and motion time history wind tunnel testing of up to 123 different configurations is discussed.
P. KLIMAS, H. WIDDOWS, R. CROLL
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Wind tunnel test of wind-induced snowdrift on stepped flat roofs during snowfall
Natural Hazards, 2020Jianshuo Wang +3 more
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Dynamic wind tunnel testing techniques
2nd Aerodynamic Testing Conference, 1966Dynamic wind tunnel testing techniques and program of advanced analysis of full-scale free- flight missile performance ...
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