Wind tunnel models often have many holes or seams due to construction or multiple test configurations. These holes need to be corrected to the true model geometry using surface treatments such as tape, clay, and wax. The goal of this study is to compare existing treatments and determine if more cost and time effective methods such as Scotch tape can achieve similar fidelity data in wind tunnel testing as traditional and more expensive methods. An axisymmetric wind tunnel model was designed and constructed to compare different surface treatments. The treatments tested were no treatment, aluminum tape, aluminum tape dots, Kapton Tape, Kapton Tape dots, Scotch Magic Tape, and clay. The treatment methods were tested in both the laminar and turbulent regions of the boundary layer. It was found that in the laminar region of the model, untreated holes produced the most drag and clay produced the least. It also showed that Scotch Magic Tape produced the second lowest drag of all, with only clay performing better. For the turbulent regions, the results were noisy and inconclusive.
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