Diffuser (automotive)

Aerodynamic surface (rear shape) on an automotive

A diffuser on an automobile is a shaped section of the car’s rear which improves its aerodynamic properties by enhancing the transition between the high-velocity airflow underneath the car and the much slower freestream airflow of the ambient atmosphere. It works by providing a space for the underbody airflow to decelerate and expand (in volume, as density is assumed to be constant at the speeds that cars travel) so that it does not cause excessive flow separation and drag, by providing a degree of "wake infill" or more accurately, pressure rec...

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Diffuser (automotive)

Aerodynamic surface (rear shape) on an automotive

Texto en inglés

A diffuser on an automobile is a shaped section of the car’s rear which improves its aerodynamic properties by enhancing the transition between the high-velocity airflow underneath the car and the much slower freestream airflow of the ambient atmosphere. It works by providing a space for the underbody airflow to decelerate and expand (in volume, as density is assumed to be constant at the speeds that cars travel) so that it does not cause excessive flow separation and drag, by providing a degree of "wake infill" or more accurately, pressure rec...

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Texto en inglés Aún no hay artículo en tu idioma: extracto en inglés.

A diffuser on an automobile is a shaped section of the car’s rear which improves its aerodynamic properties by enhancing the transition between the high-velocity airflow underneath the car and the much slower freestream airflow of the ambient atmosphere. It works by providing a space for the underbody airflow to decelerate and expand (in volume, as density is assumed to be constant at the speeds that cars travel) so that it does not cause excessive flow separation and drag, by providing a degree of "wake infill" or more accurately, pressure recovery. The diffuser itself accelerates the flow in front of it, which helps generate downforce. This is achieved by creating a change in velocity of the air flowing under the diffuser by giving it a rake angle which in turn generates a change in pressure and hence increases downforce.

Texto: Wikipedia en inglés, CC BY-SA 4.0. · Imagen: Arnero (CC BY-SA 3.0) ·

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