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Tema: Step-less vs. Stepped F1's car nose brief CFD analysis

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    25 mar, 10
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    Step-less vs. Stepped F1's car nose brief CFD analysis

    I exhibit below, a brief report related to the influence of a “step” on the airflow through the nose of a F1's car.

    These are both noses (step-less/stepped), imported to the meshing code (Gambit):

    The step-less nose:


    The stepped one:

    subir gif

    They have been used the real length between lines A-A and B-B (925 mm) besides the minimum external dimension (vertical) at the section A-A (275 mm) and the minimum external dimension (vertical) at the section B-B (400mm).

    subir imagenes gratis


    It has been set, too, an airflow's speed of 50m/s because, that's the maximum allowed by FIA (2013 Formula One Sporting Regulations) during wind tunnel testing [Rule 22.10].

    This is the velocity vectors chart, for the step-less nose:

    sube imagenes

    We can see that airflow's speed is growing gradually from the nose tip.

    The image before, zoomed:

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    The velocity vectors chart, for the stepped nose:


    We are able to notice changes when compared to the previous case.

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    In this case, airflow's speed decreases when it is approaching the bottom of the step. After that, airflow's speed, starts to be increased again, reaching the “maximum” at the top of the step.

    The step area, zoomed:

    subir imagenes

    In closing, I let you, a comparative chart of the same nose's area (step-less/stepped):

    subir foto

    I hope you liked it.

    Regards, MarleneKberg.

    Última edición por llumia; 04/08/2014 a las 16:39
    Alonso carried his Renault to third place in Singapore. After Vettel and Rosberg wrecked their own races, he seized a podium from a car that did not deserve it.

    That is the difference between the great and the merely good.

    Martin Brundle (Sing '09)

    "Alonso has been brilliant all weekend, absolutely brilliant". "A driver not always easyto love, but very easy to admire".

    Martin Brundle (Sing '10)

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