부산대학교 도서관

This paper reports on the development of simple numerical wind tunnel by using spreadsheet software. Macro-function (Excel VBA) installed in the spreadsheet software realized the wind tunnel that could analyze the flow around a thick airfoil just by coding a short program. Flow around a NACA-airfoil and a Joukowsky-airfoil was simulated by means of the developed numerical wind tunnel with a discrete vortex method. The calculated results were compared with that of experiment or analytical solution in order to examine the accuracy of the numerical simulation. In the result, developed numerical wind tunnel could calculate the lift generated by an airfoil with satisfactory accuracy. But that indicated the wrong surface pressure distribution on the airfoil because of its computational technique. It was concluded from this study that the numerical wind tunnel using a spreadsheet had the potential to simulate more complex flow.