Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 17 of 17 for “"delta wings"”.
-
Separated Flows Over Non-slender Delta Wings
Wings with sweep are ubiquitous for engineering applications, and are observed in biology for swimmers and fliers alike. In particular, delta wings have wide ranging applicability arising from their low speed maneuvering characteristics, and favourable properties approaching the speed of sound. …
-
The Aerodynamics of Low Sweep Delta Wings
The aerodynamics of wings with moderately swept wings continues to be a challenging and important problem due to the current and future use in military aircraft. And yet, there is very little work devoted to the understanding of the aerodynamics of such wings. The problem is that such wings may be …
-
A semi-implicit Navier-Stokes solver and its application to a study of separated flow about blunt delta wings
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1989.
-
Analysis of the flow structure and reattachment over accelerating non-slender delta-wing planforms
<p>Delta wings are triangular-shaped lifting surfaces, and in past decades, they have been found to have important applications in maneuvering combat aircraft and supersonic aircraft. Slender, or high swept, delta wings have been widely studied in early investigations since they suffer less wave …
-
A continuous vorticity panel method for the prediction of steady aerodynamic loads on lifting surfaces
… the experimental data for both rectangular and delta wings for incompressible flows.
-
Nonlinear steady and unsteady aerodynamics of wings and wing-body-combinations
… unsteady incompressible flow over delta wings. Symmetric motions (pitching, heaving) and asymmetric motions (roll, yaw) are considered. Then the method is generalized to treat the nonlinear three-dimensional steady flow for bodies and wing body combinations. Numerical examples …
-
A systematic investigation of the parameters affecting the accuracy of the vortex-lattice method
… function over the surface of the wing. Delta, arrowhead, and cropped delta wings are presented as numerical examples. Parametric studies are made for the delta wing of aspect ratio one. It is found that the parameter which has the greatest influence on the solution is the extension of …
-
A vortex panel method for potential flows with applications to dynamics and controls
… tests are conducted on flat rectangular and delta wings. Dynamic tests are performed to predict wing rock of a slender delta wing restricted to one degree of freedom in roll. The aerodynamic/dynamic model is coupled with control laws that govern the motion of flaperons so that a prescribed …
-
An Investigation of Unsteady Aerodynamic Multi-axis State-Space Formulations as a Tool for Wing Rock Representation
… available in the open literature for slender delta wings, and tested in order to investigate their ability to represent the wing rock phenomenon. The identifications for the second proposed formulation are found to match the experimental data well. The simulations revealed that even though it …
-
Ram-jet combustion based on shock/flame interaction
… (axisymmetric cowls, twodimensional wedges and 'delta' wings) on the base pressure. Shock waves generated by over-expanding the airflow in an open-jet wind tunnel have been used to determine the effect of shock strength on the base pressure of an axisymmetric fuel injector. Both peripheral bleed …
-
Application of panel methods for subsonic aerodynamics
… is applied to thin and thick low-aspect-ratio delta wings and rectangular wings. The computed aerodynamic forces and wake shapes are in quantitative agreement with experimental data and other computational results.
-
The Development and Applications of a Numerical Method for Compressible Vorticity Confinement in Vortex-Dominant Flows
… considered include supersonic conical flows over delta wings, shock-bubble and shock-vortex interactions, the turbulent flow around a square cylinder and the turbulent flow past a surface-mounted 3D cube in a channel floor. A second approach for evaluating the effectiveness of the CVC method is by …
-
The Dynamic Character of the Flow Over a 3.5 Caliber Tangent-Ogive Cylinder in Steady and Maneuvering States at High Incidence
… but it is reminiscent of vortex breakdown over delta wings.