Design, Construction and Testing of a 3-Component Force Balance for Educational Wind Tunnels in Undergraduate Aerodynamics

Tomin, Milan; Scipioni, Marco; Gatti, Benjamin

doi:10.15394/jaaer.2020.1809

Cited by 3 publications

(3 citation statements)

References 2 publications

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“…Some research has been conducted on measuring the airfoil aerodynamic forces. Milan Tomin et al (2020) researched and researched designing the force balance to obtain the airfoil's aerodynamic lift, drag, and pitching moment [12]. The system uses three load cells and electronics hosted under the test section to minimize interference with the airflow.…”

Section: Introductionmentioning

confidence: 99%

Arduino IoT Controller for Angle of Attack Measurement with Force Balance

Pratama,

Ikhsan,

Permana

2024

ijsecs

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The force balance system uses the whitestone bridge concept to read the airfoil aerodynamic lift and drag forces while also having a function to control the airfoil angle of attack. It is designed for low subsonic wind tunnels, especially for educational purposes. The system uses Arduino as the microcontroller to read the force data from the load cell sensors and gives commands to the rotary motor stepper to change the airfoil angle of attack. Arduino is combined with a novel mechanical linkage system designed and studied to ensure the sensors can read the correct airfoil lift and drag forces. The angle of attack is controlled with a smartphone to decide the degree of airfoil. The reading of the system is validated using spring balance that pulls the system with magnitudes of 1,1.5, 2, 2.5, and 3 kg in some pulling force angle. The results show that the reading of the system is accurate compared to the theoretical results, with an average error of 2 %. The force measuring tool on the airfoil is the first step in a series of steps to produce the final project, namely the wind turbine. Research suggests that the load cell must be positioned correctly so that the sensor reading error can be increased again. The stepper motor must be turned off the bottom shaft to prevent the airfoil from rotating.

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Section: Introductionmentioning

confidence: 99%

Arduino IoT Controller for Angle of Attack Measurement with Force Balance

Pratama,

Ikhsan,

Permana

2024

ijsecs

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“…However, an experimental method of directly measuring the total lift and drag forces would validate the accuracy of the results by comparing the total drag force to the pressure drag to determine the significance of skin friction drag in the experiment. As an honors supplement to the Capstone project, a force balance was developed as a direct force measurement system [3] based on the study of [4]. The force balance utilizes three 1kg Load Cells.…”

Section: Figure 1 Hampton H-6910 Wind Tunnelmentioning

confidence: 99%

“…Validating the Reynolds number used in the simulation allowed for the comparison of the results gathered during the simulation to those of published values [4].…”

Section: 𝑅 =mentioning

confidence: 99%

Measuring the drag forces on Corvette car model

Chidurala,

Bishop,

Sekula

et al.

2023 ASEE Annual Conference &Amp; Exposition Proceedings

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WKU), studying Mechanical Engineering with a focus on Thermo-Fluids. He conducts industry related research and assists in organizing and maintaining WKU's Material Science laboratory. He is conducting his own research in conjunction with Dr. Benjamin Dinan on the classroom clay produced by WKU's ceramics department, testing the compression strength, and identifying the mechanical properties through the manufactured clay's microstructure.

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Numerical analysis of a mini wind tunnel and experimental investigation of the mini wind tunnel utilizing a portable, three-axis load/balance measurement system

Kara,

Öztürk

2024

Gümüşhane Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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Investigation of a portable three-axis load/balance measurement system in a mini wind tunnel is the main subject of study. Firstly, a mini wind tunnel is designed, numerically analyzed and constructed. Then, measurements of lift and drag forces on a selected airfoil are carried out using data from the measurement system located in the test area. Tri-axis load/balance measurement system developed has a total of three load cells, one for drag and two for lift. Sensor data acquisition codes are written using Ardunio and force measurement experiments are performed at various angles of attack on the NACA2412 airfoil at Reynolds number of 60000, for the maximum flow rate of 5200 m3/h through fan controller in the constructed mini wind tunnel. After completing the mesh independence test, numerical studies are conducted in ANSYS Fluent for the same range of angles of attack using three different turbulence models. Realizable k-ε turbulence model gives more realistic high stall angles of attack than other turbulence models and similar to experimental results. In addition to the current experimental study, four other literature studies in similar Reynolds number ranges are used as reference cases. A visual study of the flow around the airfoil is given as velocity contours in addition to the numerical comparisons. From the numerical and experimental results, it is concluded that the NACA2412 airfoil profile wings are more efficient for moderate to high Reynolds numbers and the constructed load/balance measurement system and mini wind tunnel are highly successful in terms of lift and drag measurements.

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Design, Construction and Testing of a 3-Component Force Balance for Educational Wind Tunnels in Undergraduate Aerodynamics

Cited by 3 publications

References 2 publications

Arduino IoT Controller for Angle of Attack Measurement with Force Balance

Arduino IoT Controller for Angle of Attack Measurement with Force Balance

Measuring the drag forces on Corvette car model

Numerical analysis of a mini wind tunnel and experimental investigation of the mini wind tunnel utilizing a portable, three-axis load/balance measurement system

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