Showing papers on "Vortex lattice method published in 1972"
TL;DR: In this article, a simplified analog (the finite Hilbert transform) or the equation of two-dimensional incompressible thin wing flow, is studied and several important points concerning this discretization proved.
56 citations
3 citations
01 Nov 1972
TL;DR: In this article, an analytical model for the investigation of flow fields about intermediate disc loading lift devices for VTOL applications is presented. And the results are evaluated and recommendations are made for further model development.
Abstract: : A study was conducted to develop an analytical model for the investigation of flow fields about intermediate disc loading lift devices for VTOL applications Classical vortex-lattice theory was used in conjunction with experimental data for representing a free propeller in a crossflow The jet phenomena to be simulated by the method are discussed A number of previous attempts at vortex-lattice modeling are presented Analytical stream lines and field vectors are compared with available experimental data The results are evaluated and recommendations are made for further model development
1 citations
01 Sep 1972
TL;DR: In this article, the aerodynamic loads on single or multiple lifting-surface configurations that represent vehicles in subsonic flight, e.g., wings, wing-tail, wing canard, lifting bodies, etc.
Abstract: The program was designed to provide solutions of engineering accuracy for determining the aerodynamic loads on single- or multiple-lifting-surface configurations that represent vehicles in subsonic flight, e.g., wings, wing-tail, wing-canard, lifting bodies, etc. The preparation is described of the input data, associated input arrangement, and the output format for the program data, including specification of the various operational details of the program such as array sizes, tape numbers utilized, and program dumps. A full description of the underlying theory used in the program development and a review of the program qualification tests are included.