@article{(Open Science Index):https://publications.waset.org/pdf/9130, title = {New Hybrid Method to Correct for Wind Tunnel Wall- and Support Interference On-line}, author = {B. J. C. Horsten and L. L. M. Veldhuis}, country = {}, institution = {}, abstract = {Because support interference corrections are not properly understood, engineers mostly rely on expensive dummy measurements or CFD calculations. This paper presents a method based on uncorrected wind tunnel measurements and fast calculation techniques (it is a hybrid method) to calculate wall interference, support interference and residual interference (when e.g. a support member closely approaches the wind tunnel walls) for any type of wind tunnel and support configuration. The method provides with a simple formula for the calculation of the interference gradient. This gradient is based on the uncorrected measurements and a successive calculation of the slopes of the interference-free aerodynamic coefficients. For the latter purpose a new vortex-lattice routine is developed that corrects the slopes for viscous effects. A test case of a measurement on a wing proves the value of this hybrid method as trends and orders of magnitudes of the interference are correctly determined.}, journal = {International Journal of Aerospace and Mechanical Engineering}, volume = {3}, number = {10}, year = {2009}, pages = {1237 - 1244}, ee = {https://publications.waset.org/pdf/9130}, url = {https://publications.waset.org/vol/34}, bibsource = {https://publications.waset.org/}, issn = {eISSN: 1307-6892}, publisher = {World Academy of Science, Engineering and Technology}, index = {Open Science Index 34, 2009}, }