The Magnus Effect.
The Magnus effect is a physical phenomenon that occurs when the flow around a rotating body (cylinder, sphere, etc.) a fluid or gas flow, resulting in a force perpendicular to the flow direction and acts on the body.
The Magnus Effect:
The Magnus effect is a physical phenomenon that occurs when the flow around a rotating body (cylinder, sphere, etc.) flow of fluid or gas, resulting in a force perpendicular to the flow direction and acts on the body.
The Magnus effect was first described by the German physicist Heinrich Magnus in 1853 and was named in his honor.
The essence of the effect consists in the following. The rotating body itself creates in the environment of the vortex motion.
On one side of the body the direction of the vortex coincides with the direction of flow flowing and, accordingly, creates a low pressure environment and the speed of motion of the medium on this side increases. On the other side of the body area of the vortex is opposite to the direction of traffic flow, creates a high pressure environment and the velocity of the medium decreases. That is, P2 > P1, v1 > v2.
Due to the pressure difference of the medium and the difference of the speeds of movement of the medium from different sides of the body occurs transverse force directed from the side of the rotating body at which the direction of rotation and the direction of flow is opposite to the side on which these directions coincide, i.e. from the side where the pressure of the medium more to the side where the pressure is less.
Transverse force and moves the body in the direction of the transverse force.
The Magnus effect is the basis of the mechanism (principle) of turbopause. Turboprop allows the ship to save fuel, according to various estimates, from 10 to 35 %. The number of installed on the ship of turbopause also affects the cost of the ship fuel.
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