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Wind Tunnel Testing Articles & Analysis
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Introduction of Works: Ultrasonic wind speed and direction sensors are devices used to measure wind speed and direction in a variety of applications, from weather forecasting to wind power generation. ...
Instead, simplifications must be introduced, which are rather significant, to have a chance of computing a solution in a reasonable time with reasonable computer hardware. This is also a reason why wind tunnel tests still have to be performed until one can be sure if the computed result is really correct. ...
Wave energy converters are generally placed in a very harsh environment and are hard to access due to their location and/or unfavorable weather conditions. With this in mind a full-scale wind tunnel test facility capable of simulating a variety of wave heights and wave periods has been built to fully test and validate Aquanet's ...
We may launch Vortex Nano as well, the device we use for quick testings, a wind-powered USB charging station of less than 1m high, like a wind power bank with batteries inside. ...
Wind tunnels, used for aerodynamic and acoustic testing in the automotive and aerospace industries, use one or more electrically driven fans to push or pull air through a test section. Air will either recirculate through a closed loop or be drawn in from the surroundings from one end of the tunnel and exhausted ...
This innovative system enables customizable row spacing, tilt angle, and orientation, making it an ideal choice for a wider array of operating environments. Wind tunnel testing is specific for this system with a boundary layer wind tunnel tested by RWDI – based on ASCE 7-10, NBCC 2005, IBC ...
A new bladeless wind turbine that promises to be more efficient, less visually intrusive, and safer for birdlife than conventional turbines has been welcomed by two of the UK wind energy industry’s most vocal critics. ...
Strongly linked with the automotive industry, the history of automotive testing business by HORIBA Group has developed itself along with innovative automotive technologies. ...
This paper focuses on the studies of the correlation between the ventilation and pollutant removal over idealised two–dimensional urban street canyons using wind tunnel experiments in the Department of Mechanical Engineering, The University of Hong Kong. To construct street canyon models of different building–height–to–street–width (aspect) ratios, movable ...
A stationary three–dimensional Lagrangian stochastic numerical model, LAGrangian FLUctuation Model (LAGFLUM), was developed by coupling a macromixing with a micromixing scheme, to determine the mean and the variance of concentration for a passive scalar in 3D turbulent flows. The model was tested by comparison with the (MUST) Mock Urban Setting Test ...
The vertical axis H-Darrieus turbines are simple in construction, self-starting, omni-directional, and self-regulating at all wind speeds. A comparative study of the performances of twisted two-bladed and three-bladed airfoil shaped H-Darrieus turbines was made. The models of the turbines were designed, fabricated, and tested in a subsonic wind ...
A Lagrangian stochastic (single particle) model is modified in order to account for simple chemistry reactions and tested against measured wind tunnel data. These data refers to a reactive plume generated by a single point source of NO inside a turbulent grid flow doped with ozone. ...
Results from experimental modal analysis and sound pressure spectrum measurement in a wind tunnel indicate the direction of design modification for reduction of the roof rack noise and vibration. The modal analysis and physical tests of wind tunnel proved to be good tools for evaluating and ranking roof rack ...
In recent years, the field of research, development and testing of vehicles has created a need for integrated testing systems which cover the entire vehicle including engine and driveline. ...
The concentration predictions of FLUENT are compared with the Environmental Wind Tunnel (EWT) test results conducted at Indian Institute of Technology, Delhi for the Aspect Ratio (AR) of 1 and 1.5 at perpendicular wind direction. ...
Wind tunnel tests were conducted to compare wood strands of several geometries to agricultural wheat straw and bare soil in terms of total sediment loss, PM10 vertical flux, and PM10 loss. Results indicate that the types of wood strands tested are stable at wind speeds of up to 18 m s–1, while wheat straw is only ...
Therefore, estimation of drag on a maximum four-vehicle platoon model was carried out inside Jadavpur University Subsonic Low Turbulence Closed Circuit Wind Tunnel test section. Several car models and bus models were used as platoon members in this experiment. ...
Although the use of wind turbines has become necessary in many parts of the world, the actual developments in wind turbines do not concern countries where the average wind speeds are low. ...
In the K-probe, as in many sonic probes available today, the transducers at the ends of its acoustic paths cast a "shadow" on the paths, causing the measured wind velocity component along the path to be underestimated. The degree of attenuation is a function of the angle between the wind direction and the acoustic path which increases with decreasing angle, ...
Only a transducer shadow correction determined from wind tunnel tests is needed to obtain measurements that are virtually insensitive to probe orientation relative to the mean flow. Preliminary results from a series of three atmospheric tests verify the effectiveness of this ...