Abstract
An advanced drag prediction method, based on a volumetric integration and derived from the fareld method, has recently been proposed. This powerful method allows for the extraction of spurious drag introduced by arti cial dissipation from a CFD solution. This method also allows for the breakdown of drag into its physical sources. Until now, this method has required a fully converged CFD solution in order to ensure accurate results. At its rst contribution, this paper states a less restrictive convergence criterion that ensures accurate results. Its second contribution is to render this method compatible with various kinds of solver by suggesting a way to avoid interpolating a gradient, as this interpolation is generally a source of numerical error.
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