Accurate computation of drag for a wing/body configuration using multi-block, structered-grid CFD technology

Boelens, O.J. and Laban, M. and Beek van , C.M. and Leeden van der, R. (2001) Accurate computation of drag for a wing/body configuration using multi-block, structered-grid CFD technology. [Report]

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Abstract:	In this report the contribution of the National Aerospace Laboratory NLR to the ’CFD Drag Pre- diction Workshop’ organized by the AIAA in Anaheim, CA, on June 9-10, 2001, is presented. This contribution consists of both the results of all test cases and a discussion on the accurate computation of drag coefficients. Two approaches are presented and discussed. The first method performs a grid convergence study using a sequence of nested grids yielding the grid-converged drag coefficient. To enable this study to be carried out, such a sequence of nested multi-block structured grids (’NLR’ grid) has been generated. The second method, using one grid only, de- composes the drag coefficient into its ’physical components’ (vortex, wave and viscous drag). As a consequence, this method provides the aerodynamic designer with a helpful tool, because of its diagnostic potential.
Item Type:	Report
Faculty:	Electrical Engineering, Mathematics and Computer Science (EEMCS)
Research Group:	Mathematics of Computational Science (MaCS)
Link to this item:	http://purl.utwente.nl/publications/76825
Official URL:	http://www.nlr.nl/smartsite.dws?id=4392
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