What does drag forces in air depend on?
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Drag forces in air depend on several factors. The fluid shear rate and the particle (droplet) Reynolds number have been found to affect the drag forces acting on a spherical droplet . The viscosity of the fluid also plays a role, as demonstrated by the different viscosities of the silicon oils used in the study of gas bubbles . Additionally, the drag force on an object in flight is proportional to the speed and can be increased by increasing the object's surface area . The cross-section, position, and local air velocity of filaments also influence the drag forces acting on them . Overall, the drag forces in air depend on the fluid shear rate, Reynolds number, viscosity, speed, surface area, and the characteristics of the object or filament in question.
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17 Citations | The drag force in air depends on the velocity squared and the surface area of the object. The paper mentions that at speeds less than about 1 m/s, the drag force is proportional to the speed and is given by Stokes' law. At higher speeds, the drag force is proportional to the velocity squared. The effect of the drag force can also be increased by increasing the surface area of the object. |
24 Citations | The drag forces in air depend on the local air velocity, the filament surface area, and the projected areas exposed to the flow. |
| The drag forces in air depend on the velocity of the object and the drag coefficient, which in turn depends on the Reynolds number. | |
35 Citations | The drag forces in air depend on the fluid shear rate and the particle (droplet) Reynolds number, according to the provided paper. |
Open access 01 Jan 2010 | The paper does not provide information on what drag forces in air depend on. |
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