Numerical Experiments on Solving Theodorsen's Integral Equation for Conformal Maps with the Fast Fourier Transform and Various Nonlinear Iterative Methods

Martin H. Gutknecht
1983 SIAM Journal on Scientific and Statistical Computing  
In [M. H. Gutknecht, Numer. Math., 36 (1981) , pp. 405-429] we investigated several iterative methods for solving discretized versions of Theodorsen's nonlinear integral equation. Here we present corresponding numerical experiments and discuss some related questions, such as the application of a continuation method, the evaluation of the approximate mapping function, the selection of the appropriate type of approximation, and the use of preliminary maps to eliminate corners. Both the nonlinear
more » ... OR method and a related second order Euler method are seen to be very effective, even if the assumptions of the theory do not hold.
doi:10.1137/0904001 fatcat:tp5qpgdr3neqddimq3uujbdi7e