Author : National Aeronautics and Space Administration (NASA)
Release : 2018-08-22
Genre :
Kind : eBook
Book Rating : 783/5 ( reviews)
Book Synopsis Unsteady Supersonic Aerodynamic Theory for Interfering Surfaces by the Method of Potential Gradient by : National Aeronautics and Space Administration (NASA)
Download or read book Unsteady Supersonic Aerodynamic Theory for Interfering Surfaces by the Method of Potential Gradient written by National Aeronautics and Space Administration (NASA). This book was released on 2018-08-22. Available in PDF, EPUB and Kindle. Book excerpt: A generalized solution of the hyperbolic wave equation was further developed to relate the velocity components at a field point to the potential gradient distribution in the dependence domain. Singular integrals were evaluated in closed form, with numerical integration methods for more complex but analytic functions. Idealization of the lifting surfaces by trapezoidal elements with two sides parallel to the streamlines is computationally efficient. Streamwise integrals were performed analytically, and spanwise integrals were neccessary only on element leading and trailing sides. All integrands vanish on the Mach cone. Pressure distribution on a double delta wing and generalized aerodynamic coefficients for three AGARD planforms were calculated and compared with available results. Jones, W. P. and Arppa, K. Unspecified Center NASA-CR-2898 NAS1-13986...
