揚力面理論の自動適応型数値計算法

抄録

For problems of numerical lifting surfaces, comparisons among various approximate methods do not always yield satisfactory knowledge. This paper presents a means which determines accuracy of any approximate method without comparison. Moreover it enables us (1) to achieve optimum ratio NS/NC automatically and (2) to do just necessary calculation for obtaining any prescribed accuracy. This is a sort of "steepest descent method." Computations are proceeded in direction of -grad |grad C_L| in NS vs. NC diagrams.
An appropriate convergence theory is adopted.
Although the method is applied here mainly to Vortex Lattice Method (VLM) for steady wings, it is a universal one which may be applicable to any efficient unsteady VLMs or mode methods.