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    Sizing intake ducts

    Feb 04, 2022 3 minutes

    The following is an edited extract from Competition Car Aerodynamics, by this writer, and outlines a method for sizing an inlet duct. It is based on an example of a 2005 F1 engine originally provided by Dr Rob Lewis (then at Advantage CFD, now at TotalSim) but applicable in principle to other engines if capacity, rpm and volumetric efficiency (plus boost level, if pressure charged) figures are available.

    Assuming technical regulations do not mandate an engine inlet restrictor,

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