Feel the Lift
★Exhibit Content: Bernoulli's Principle ★Interaction: Mechanical Interaction ★Operation: 1. Press the button on the console to start the fan; 2. Wear different wings between the air outlet and the air inlet to feel the changes. ★Exhibit Description: The exhibit consists of a display stand, an annular wind tunnel duct, a fan, multiple sets of wing models, and an electronic control system. It is a recommended exhibit from the PopsciCat Exhibit Store. The exhibit integrates a closed annular wind tunnel structure. After the fan operates, a stable and uniform continuous airflow is generated inside the duct. Participants can select various wing models with different cross-sectional shapes from the side storage bucket, put them on their arms, place the wings between the air outlet and the air inlet of the wind tunnel, slightly adjust the tilt angle of the wings, press the start button, and personally feel the upward lifting force generated by the airflow acting on the wings. By replacing wing models with different curvatures and airfoil shapes, participants can compare and observe the differences in lift magnitude, and intuitively understand the basic physical principle of aircraft takeoff. ★Scientific Principle: When airflow with a certain speed flows over the wing surface, the streamlined cross-sectional structure of the wing makes the airflow path on the upper surface longer, causing the airflow speed to be faster than that on the lower surface. According to the principle of continuity of airflow and Bernoulli's principle, the higher the fluid velocity, the lower the pressure. Therefore, the pressure above the wing is lower than the pressure below the wing. The pressure difference between the upper and lower surfaces of the wing creates an upward pressure difference, and this upward pressure is the lift given by the air to the wing. The magnitude of lift varies with airflow speed, angle of attack, and airfoil profile, which is also the core principle for aircraft to overcome their own gravity and fly into the sky.
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- 1.8*0.8*1.3m 1.8*0.8*1.3mDimensions (unit: m): 1.8*0.8*1.3m Brand: PopsciCat Model: PopsciCat-space-033 1. Materials: ① Display stand and tabletop: 30mm square tube frame, 2.0mm cold-rolled steel side panels, surface painted ② Wind tunnel duct: 2.0mm cold-rolled steel plate, surface painted ③ Instruction sign: 5mm thick acrylic UV printing ④ Maintenance door: 2.0mm cold-rolled steel plate, surface painted ⑤ Wings: 38-degree EVA custom models ⑥ Electrical control box: cold-rolled steel painted enclosure, containing control circuits, switching power supply, circuit breakers, terminal blocks, etc. 2. Main Configuration: ① Electrical control: electrical logic control system, equipped with Inertia® K2 PLC controller with protection specially for science exhibits ② Button: self-resetting 22mm stainless steel metal button with ring light; LED voltage not higher than 12V ③ Frequency converter: 1 unit ④ Fan: power frequency centrifugal fan 3. Installation Requirements: ① Power requirement: AC100-240V, 50/60Hz 500W (standard three-wire socket) ② Installation base: place directly ③ Entry passage: door frame size (width × height) ≥1.2m×1.8m, continuous turning interval ≥2.6m ④ Maintenance access: not required
★Exhibit Content: Bernoulli's Principle ★Interaction: Mechanical Interaction ★Operation: 1. Press the button on the console to start the fan; 2. Wear different wings between the air outlet and the air inlet to feel the changes. ★Exhibit Description: The exhibit consists of a display stand, an annular wind tunnel duct, a fan, multiple sets of wing models, and an electronic control system. It is a recommended exhibit from the PopsciCat Exhibit Store. The exhibit integrates a closed annular wind tunnel structure. After the fan operates, a stable and uniform continuous airflow is generated inside the duct. Participants can select various wing models with different cross-sectional shapes from the side storage bucket, put them on their arms, place the wings between the air outlet and the air inlet of the wind tunnel, slightly adjust the tilt angle of the wings, press the start button, and personally feel the upward lifting force generated by the airflow acting on the wings. By replacing wing models with different curvatures and airfoil shapes, participants can compare and observe the differences in lift magnitude, and intuitively understand the basic physical principle of aircraft takeoff. ★Scientific Principle: When airflow with a certain speed flows over the wing surface, the streamlined cross-sectional structure of the wing makes the airflow path on the upper surface longer, causing the airflow speed to be faster than that on the lower surface. According to the principle of continuity of airflow and Bernoulli's principle, the higher the fluid velocity, the lower the pressure. Therefore, the pressure above the wing is lower than the pressure below the wing. The pressure difference between the upper and lower surfaces of the wing creates an upward pressure difference, and this upward pressure is the lift given by the air to the wing. The magnitude of lift varies with airflow speed, angle of attack, and airfoil profile, which is also the core principle for aircraft to overcome their own gravity and fly into the sky.
Review
Principle Display: ★★★ Interaction Effect: ★★★ Ease of Installation: ★★★★★ Durability: ★★★ Overall Rating: ★★★