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Unsteady supersonic aerodynamic theory for interfering surfaces by the method of potential gradient
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Jones, W. P. Arppa, K. |
| Copyright Year | 1977 |
| Description | 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. |
| File Size | 1236065 |
| Page Count | 39 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19770026177 |
| Archival Resource Key | ark:/13960/t6j14v65q |
| Language | English |
| Publisher Date | 1977-10-01 |
| Access Restriction | Open |
| Subject Keyword | Aerodynamics Supersonics Numerical Integration Lifting Bodies Unsteady Aerodynamics Wave Equations Interference Potential Gradients Pressure Distribution Aerodynamic Forces Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
