Results are presented which are obtained by a new elaborate method developed at NLR for the determination of the characteristics of thin wings in subsonic flow. Attention is paid to the rate of convergence of the numerical solutions, especially with respect to the number of collocation points. Two rectangular wings have been treated in order to examine the influence of the aspect ratio. The influence of the rounding of a kink is demonstrated by means of a series of constant chord wings with hyperbolic edges.
Labrujere, TH. E., & Zandbergen, P. J. (1973). On the application of a new version of lifting surface theory to nonslender and kinked wings. Journal of engineering mathematics, 7(1), 85-96. https://doi.org/10.1007/BF01535271