Potential Flow About Two-Dimensional Airfoils. Part I. A Summary of Two-Dimensional Airfoil Methods. Part II. Solution of the Flow Field About One or More Airfoils of Arbitrary Shape in Uniform or Non-uniform Flows by the Douglas Neumann Method

The purpose of the report is twofold: first, an attempt is made to summarize and evaluate the methods available for the calculation of two-dimensional potential flows about airfoils, and second, to give a complete description of the powerful Douglas plane-potential-flow method along with a discussion of all its capabilities related to airfoils. The report is, therefore, divided into two parts. Part 1 (Section 6.0) comprises the summary of methods and Part 2 (Section 7.0), the description of the Douglas-Neumann potential flow program. (Modified author abstract) Revision of report dated 1 Dec 65.