Journal ArticleDOI
Numerical calculation of nonlinear aerodynamics of wing-body configurations
TLDR
In this article, a numerical method for the calculation of the nonlinear aerodynamic characteristics of wing-body configurations in steady low subsonic flow has been developed, based on a combination of the linear source-panel method for body and the non-linear vortex-lattice method for lifting surfaces and their separated wakes.Abstract:
A numerical method for the calculation of the nonlinear aerodynamic characteristics of wing-body configurations in steady low subsonic flow has been developed. The method is based on a combination of the linear source-panel method for the body and the nonlinear vortex-lattice method for the lifting surfaces and their separated wakes. Special emphasis is given to the understanding of the behavior and the computational accuracy of the numerical method. In order to demonstrate the capabilities of the present method, total and distributed loads are computed and compared with available experimental results. The computed examples cover simple configurations as well as more complicated geometries with greater relevance to modern missiles and aircraft. Details of the calculations clarify the significant nonlinear contribution of the body to the aerodynamic properties of the configuration. Good agreement was found between the computations and the experiments.read more
Citations
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Journal ArticleDOI
Modified Unsteady Vortex-Lattice Method to Study Flapping Wings in Hover Flight
TL;DR: Roccia et al. the authors presented Roccia, Bruno Antonio, et al., the authors, the authors of the paper "Consejo Nacional de Investigaciones Cientificas y Tecnicas; Argentina".
Journal ArticleDOI
Vortex trajectories and breakdown on wing-canard configurations
J. Er-El,Arnan Seginer +1 more
TL;DR: In this article, the effects of the canard sweep angle and longitudinal position on the leading edge vortex trajectories, their breakdown characteristics, and the configuration aerodynamic coefficients, are studied.
Journal ArticleDOI
Performance augmentation of a 60-degree delta aircraft configurationby spanwise blowing
Arnan Seginer,M. Salomon +1 more
TL;DR: Spanwise blowing over the wing and canard of a close-coupled-canard, 60-deg delta fighter-aircraft configuration was investigated experimentally in low-speed flow at angles of attack up to 60 deg and yaw angles of up to 36 deg as mentioned in this paper.
Journal ArticleDOI
Convergence characteristics of a vortex-lattice method for nonlinear configuration aerodynamics
TL;DR: In this paper, the convergence characteristics of a vortex-lattice method for the high-angle-of-attack, nonlinear aerodynamics of aircraft and missile configurations are studied parametrically.
Dissertation
Numerical Wing/Store Interaction Analysis of a Parametric F16 Wing
TL;DR: Inman et al. as mentioned in this paper developed a new numerical methodology to examine fluid-structure interaction of a wing/pylon/store system, which is based on an F16 configuration that was identified to induce flutter in flight at subsonic speeds.
References
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Journal ArticleDOI
Calculation of potential flow about arbitrary bodies
J.L. Hess,A.M.O. Smith +1 more
Journal ArticleDOI
Calculation of Nonlifting Potential Flow About Arbitrary Three-Dimensional Bodies
John L. Hess,A. M. O. Smith +1 more
Journal ArticleDOI
Predictions of vortex-lift characteristics based on a leading-edge suction analogy.
TL;DR: In this article, the leading edge suction analogy for predicting low speed lift and drag due-to-lift characteristics of sharp edge delta and related wing planforms was used to predict a low speed aircraft.
ReportDOI
Calculation of potential flow about arbitrary three-dimensional lifting bodies
TL;DR: In this paper, a method for calculating potential flow about arbitrary lifting three-dimensional bodies without the approximations inherent in lifting-surface theories is presented, and a considerable number of calculated results for various configurations are presented to illustrate the power and scope of the method.