Results 21 to 30 of about 3,907 (266)

Integration of CFD and Wind Tunnel by Data Assimilation

Journal of Fluid Science and Technology, 2011
In this research, “Data Assimilation” was applied to a wind tunnel experiment. A square cylinder wind tunnel experiment and the ensemble Kalman filter were used to integrate surface pressures of a square cylinder obtained from computation and
Hiroshi KATO, Shigeru OBAYASHI
doaj   +1 more source

Investigation on favorable pressure gradient in an atmospheric boundary layer wind tunnel using large‐eddy simulation and its impact on wind field and surface pressure measurement

Japan Architectural Review, 2023
A constant cross‐section wind tunnel usually experiences a negative pressure gradient (ie, favorable pressure gradient, FPG), resulting in a certain degree of discrepancy between the simulated and idealized atmospheric boundary layer (ABL) flows.
Bingchao Zhang, Ryozo Ooka, Hideki Kikumoto, Tim K. T. Tse   +3 more
doaj   +1 more source

Properties of Broezel static probe

EPJ Web of Conferences, 2016
The properties of flat static probe designed by Broezel and used in sailplanes are investigated for its planned use in low speed tunnel. Both the numerical CFD model and experiment in low speed wind tunnel confirm yaw insensitivity of the static pressure
Gašparovič Peter, Semrád Karol, Cúttová Miroslava   +2 more
doaj   +1 more source

An Intelligent Algorithm for Aerodynamic Parameters Calibration of Wind Tunnel Experiment at a High Angle of Attack

International Journal of Aerospace Engineering, 2023
In this paper, an intelligent algorithm for the aerodynamic parameter calibration of wind tunnel experiments of advanced layout aircraft at a high angle of attack is proposed.
Yeguang Wang, Shitong Jian, Zhigang Wang, Rui Fan, Peng Han, Yongxi Lyu   +5 more
doaj   +1 more source

Optimal design of sand blown wind tunnel

Automatika, 2020
This work investigates the airflow driven by dual axial-flow fans in an atmospheric boundary layer (ABL) wind tunnel and the expected entrainment of sand movement together. The present study is conducted via 3D numerical simulation based on modelling the
Bin Yang, Yong Su, Xiaosi Zhou, Bo Tang, Yang Zhang, Yinghui Ren   +5 more
doaj   +1 more source

Blowin’ in the Wind: Wind Dispersal Ability of Phytopathogenic Fusarium in a Wind Tunnel Experiment [PDF]

Atmosphere, 2021
Dispersal processes play an essential role in cereal diseases caused by phytopathogenic Fusarium. However, most empirical studies of Fusarium spore dispersal have focused on vertical transport by rain splash, while wind dispersal has been mostly neglected.
Annika Hoffmann, Roger Funk, Marina E. H. Müller   +2 more
openaire   +2 more sources

Application of Ultrasonic Chain Pin Sensor for Soil Wind Erosion Monitoring

Shuitu baochi tongbao, 2022
[Objective] The application of ultrasonic chain pin sensor in soil wind erosion was studied by experiment to verify the monitoring accuracy and reliability of the equipment for wind erosion in order to provides a theoretical basis for the improvement and
Zheng Shuhai, Lei Lei, Tian Kanliang, Ma Beiqing   +3 more
doaj   +1 more source

Experimental Investigation of the Flow, Noise, and Vibration Effect on the Construction and Design of Low-Speed Wind Tunnel Structure

Machines, 2023
A wind tunnel is needed for a lot of research and model testing in the field of engineering design. Commercial wind tunnels are large and expensive, making them unsuitable for small-scale aerodynamic model testing.
Salem S. Abdel Aziz, Essam B. Moustafa, Abdel-Halim Saber Salem Said   +2 more
doaj   +1 more source

Study on the Similarity Criteria of Aircraft Structure Temperature/Stress/Dynamic Response

Journal of Thermal Science and Technology, 2012
The performance parameters of thermal protection system are essential for the design and optimization of high-speed aircraft. The flight-ground conversion is a valid method to provide the effective support to the design of the thermal protection ...
Lei LIU, Ye-Wei GUI, Yan-Xia DU, Xiang-Ren GENG, An-Ling WANG   +4 more
doaj   +1 more source

Regression analysis to evaluate herbicide drift and injury in Roundup Ready cotton in wind tunnel

Revista Ciência Agronômica, 2021
The aim was: (i) to propose a regression model for the association between injury in Roundup Ready (RR) cotton plants and drift of auxins, isolated or associated with glyphosate; (ii) to evaluate the effect of adding glyphosate to dicamba and 2,4-D ...
Guilherme Mendes Pio de Oliveira, Marco Antonio Gandolfo, Giliardi Dalazen, Jethro Barros Osipe, Stella Mendes Pio de Oliveira, Marcelo Augusto de Aguiar e Silva   +5 more
doaj   +1 more source