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1801
Stability of a Bomb with a Wind-Stabilised-Seeker
Published 2022-09-01“…Aerodynamic forces and moments were calculated using the Prodas software and based on the results of the bomb tests in the wind tunnel. The mass and geometrical data of the system relate to the tested prototype of an aerial bomb. …”
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1802
Aerodynamic Drag Reduction by the Trapezoid Spanwise Groove Inspired by Pigeon Feathers
Published 2023-03-01“…For the trapezoidal groove similar to the feather structure, drag reduction was the best out of the three. Wind tunnel experiments for the trapezoidal groove were performed by using a cylindrical model and large-area plate. …”
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1803
Choosing the aerodynamic configuration of a subsonic cruise missile
Published 2019-10-01“…The paper presents a comparison of two aerodynamic configurations of subsonic cruise missiles, characterized by the use of swept-back and forward-swept wings. The results of wind tunnel tests with the use of an automated measurement system characterizing the dependence of the lift and drag coefficients in a sufficiently wide range of angles of attack are presented. …”
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1804
Research on Wind Flow Control by Windbreak Fence for a Large Radio Telescope Site Based on Numerical Simulations
Published 2023-01-01“…The mean error of the simulation results is less than 14% compared to the wind tunnel measured data, indicating that the constructed windbreak fence model has high reliability. …”
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1805
Length Scale of Free Stream Turbulence and Its Impact on Bypass Transition in a Boundary Layer
Published 2017-01-01“…An experimental investigation was carried out to study the turbulent flow over a flat plate in a subsonic wind tunnel. The enhanced level of turbulence was generated by five wicker grids with square meshes, and different parameters (diameter of the grid rod d = 0.3 to 3 mm and the grid mesh size M = 1 to 30 mm). …”
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1806
EXPERIMENTAL MEASUREMENTS ON A CIRCULAR DISC IN FLOW
Published 2003-03-01“…Tests were made using a low speed wind tunnel, at low, medium and high velocities of 4.74, 8.316 and 10.35 m/s respectively. …”
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1807
Experimental Study on Vortex-Induced Vibration of Steel Tubes in Transmission Towers at Various Inflow Conditions
Published 2023-01-01“…In this paper, a series of wind tunnel tests are conducted to investigate the VIV of the steel tube subjected to uniform, turbulent, and oblique flows. …”
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1808
An experimental study of the influence of spike in supersonic and transonic flows past a hemispheric body
Published 2022-01-01“…The experiment was carried out in a trisonic wind tunnel, for Mach numbers M=1.89 and M=1.03 and different angles of attack (0○ -10○ ). …”
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1809
Numerical investigation of aerodynamic performance of darrieus wind turbine based on the magnus effect
Published 2016-10-01“…This paper presents the first approach and results of a wide computational investigation on the aerodynamics of a vertical axis DARRIEUS wind turbine based on the MAGNUS effect. Consequently, wind tunnel tests were carried out to ascertain overall performance of the turbine and two-dimensional unsteady computational fluid dynamics (CFD) models were generated to help understand the aerodynamics of this new performance. …”
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1810
Aerodynamic Study of a NACA 64418 Rectangular Wing under Forced Pitching Motions
Published 2021-11-01“…The aerodynamic behavior of a pitching NACA 64418 rectangular wing was experimentally studied in a subsonic wind tunnel. The wing had a chord c = 0.5 m, a span which covered the distance between the two parallel tunnel walls and an axis of rotation 0.35 c far from the leading edge. …”
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1811
HYSTERESIS AND THERMAL INERTIA OF SPHERES OF ALTERNATIVE MATERIALS FOR BLACK GLOBE THERMOMETERS
Published 2019-11-01“…ABSTRACT This research was conducted with the objective of evaluating the thermal inertia and hysteresis of the following materials in a wind tunnel: hollow copper sphere with 150.0 mm diameter used as standard in globe thermometers, hollow brass sphere with 75.0 mm diameter, and two hollow plastic spheres with 115.5 and 69.7 mm diameter. …”
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1812
The Effect of Location and Shape of Vortex Generators on Aerodynamic Characteristics of a NACA 4415 Airfoil
Published 2023-10-01“…Experimental investigations are conducted in a subsonic wind tunnel at a Reynolds number of 1.8 x 105. The airfoil is tested with two types of vortex generators, namely the dome vortex and the convergent-divergent vortex, positioned at 10%, 28%, and 60% chord locations. …”
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1813
Industrial neighborhoods in desert cities: Designing urban landscapes to reduce sandstorm effects in Mussafah
Published 2023-04-01“…The methodology involves a coupled air and sand experiment in an environmental wind tunnel. The experiments have shown that adding a fence around the small gardens of the buildings in Mussafah reduced the sand pollution effects significantly.…”
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1814
Near-surface snow particle dynamics from particle tracking velocimetry and turbulence measurements during alpine blowing snow storms
Published 2016-12-01“…Measurements from the first outdoor application of particle tracking velocimetry (PTV) of near-surface blowing snow yield new information on mechanisms for blowing snow initiation, entrainment, and rebound, whilst also confirming some findings from wind tunnel observations. Blowing snow particle movement is influenced by complex surface flow dynamics, including saltation development from creep that has not previously been measured for snow. …”
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1815
Towards Fast Plume Source Estimation with a Mobile Robot
Published 2020-12-01“…The method was validated in an obstacle free controlled wind tunnel and the validation results show its ability to quickly converge to accurate estimates of the plume’s parameters after a reduced number of plume crossings.…”
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1816
Effects of Size and Temperature‐Dependent Thermal Conductivity on the Cooling of Pyroclasts in Air
Published 2018-10-01“…We performed cooling experiments of heated rock inside a cylindrical wind tunnel under a range of air speeds. In order to estimate the heat transfer coefficients, we modeled the transient temperature distribution in the sample with temperature‐dependent thermal diffusivity and heat capacity, which were obtained from laser flash measurements. …”
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1817
Analysis and Design of the Accessory Structure under the Large Deformation of a Flexible Roof
Published 2022-01-01“…To thoroughly unveil the analysis and design method of an accessory structure, this paper first carried out the wind tunnel test to determine the wind load of the structure. …”
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1818
Semiempirical Models of Speedup Effect for Downburst Wind Field over 3-D Hills
Published 2023-04-01“…The realizable <i>k-ε</i> model is selected as the optimal model for the subsequent numerical simulations based on comparison with wind tunnel test results. Then, a semiempirical model of the speedup effect of the downburst wind field over the hill is constructed by numerically simulating the downburst wind field over the hill with different radial locations and different slopes. …”
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1819
Field Experiments for Wind Loads on a Low-Rise Building with Adjustable Pitch
Published 2012-09-01“…Besides, two pieces of time-histories of ten-minute-length wind pressures are analyzed at 0° and 20° roof pitches respectively to compare with those of a wind tunnel test on a rigid model of 1 : 30 scale. The results show that the tendency for the mean and fluctuating wind pressure distributions between the two kinds of tests is nearly similar.…”
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1820
A New Algorithm for Shock Sensor Calculation at Supersonic Speeds on a 3D-Unstructured Grid
Published 2016-10-01“…The new algorithm, implemented at an in-house code, is evaluated by comparison of its results with wind tunnel test data and upwindtype differencing scheme of Roe for a tailplane model tested at Royal Aircraft Establishment. …”
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