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yilbaris
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We all know the lift force in case 1, what about case 2 ?
If by "lift force", you actually mean "buoyancy", this can be calculated for case 2, although it is slightly more complicated than case 1.yilbaris said:
A force can never equal a pressure, the dimensions are different. An area element is subjected to a normal force equal to the pressure multiplied by the areaMrAnchovy said:
I wanted to steer clear of elemental areas for the sake of clarity but I take your point; I have amended 'equal' to 'proportional'.Orodruin said:
Lift force is the upward force that acts on an object as it moves through a fluid, such as air or water. It is generated by differences in air pressure above and below the object. As air flows over and under the object, the air pressure above decreases while the air pressure below increases, resulting in a net upward force.
In Case 2, the object is at an angle of attack (the angle between the object's direction of motion and the oncoming air) less than 90 degrees. This creates a different pressure distribution on the object, leading to a larger lift force compared to other cases where the angle of attack is greater than 90 degrees.
The magnitude of lift force in Case 2 is affected by the angle of attack, the size and shape of the object, the speed of the object, and the density of the fluid. The shape of the object can also play a significant role in determining the amount of lift force generated.
Lift force can be measured using a variety of techniques, such as using strain gauges, pressure sensors, or force plates. These measurements can provide information on the magnitude and direction of the lift force acting on the object.
Lift force is crucial in many real-world applications, particularly in the fields of aerodynamics and fluid mechanics. Understanding lift force is essential for designing efficient and stable aircraft, as well as for optimizing the performance of sports equipment such as racing cars, bicycles, and golf balls. It also plays a vital role in natural phenomena such as bird flight and insect flight.