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Fundamentals of Aerodynamics / Jhon D. Anderson, Jr.
Jhon D. Anderson
- Vol. 2007, Iss: 2007, pp 1-99
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The article was published on 2007-01-01 and is currently open access. It has received 26 citations till now.read more
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Proceedings ArticleDOI
Drag characteristics for optimally span-loaded planar, wingletted, and C-wings
TL;DR: In this paper, the authors focus on the drag characteristics of optimally span-loaded planar, wingletted, and C wings, and use Lagrange multipliers to calculate the optimum span loading resulting in minimum induced or total drag.
Proceedings ArticleDOI
Synergistic Smart Morphing Aileron
TL;DR: In this article, the Synergistic Smart Morphing Aileron (SSMA) is presented, which overcomes the individual limitations of the constituent materials, driven by shape memory alloy and micro-fiber composite actuators.
Proceedings ArticleDOI
Performance of Pylons Upstream of a Cavity-Based Flameholder in Non-Reacting Supersonic Flow (POSTPRINT)
TL;DR: In this paper, the authors investigated the enhancement of fuel-air mixing with small pylons that project into the supersonic flow upstream of a flame holder, and found that the pylon increase fuel penetration, while not adding significantly to shock losses or overall mixing.
Journal ArticleDOI
Design and Analysis of a Light Cargo UAV Prototype
TL;DR: The basic aerodynamic and stability analysis that was used in the preliminary phase of the light UAV design are presented and could be utilized to further improve the aerodynamics of the existing design, and enhance stability and performance characteristics of theLight cargo UAV.
Proceedings ArticleDOI
Analysis of Grid Fins as Efficient Control Surface in Comparison to Conventional Planar Fins
Salman Munawar,Jehanzeb Masud +1 more
Abstract: This paper presents a numerical study of aerodynamic characteristics of grid fins and conventional fins which have been used on various air launched munitions to control their trajectory. Computations were performed at Mach 0.5, 0.9, 1.5, 2.0 and 2.5 at five angles of attack between 0 and 20 degrees for the grid fin and conventional planar fin. Validation of the results was done by comparing the computed aerodynamic coefficients for the conventional fin with analytical results and for the grid fin with wind tunnel data. Good agreement in results was observed for both the fins. For the grid fin, the aerodynamic coefficients were within 1%-7% of the wind tunnel data. For the conventional fin, the coefficients were within 1%-5% of the analytical data. The simulations were successful in predicting the flow behavior over the stand alone grid fin in subsonic and supersonic regimes and showed their improved control effectiveness and aerodynamic characteristics over the conventional fin.
References
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Proceedings ArticleDOI
Drag characteristics for optimally span-loaded planar, wingletted, and C-wings
TL;DR: In this paper, the authors focus on the drag characteristics of optimally span-loaded planar, wingletted, and C wings, and use Lagrange multipliers to calculate the optimum span loading resulting in minimum induced or total drag.
Journal ArticleDOI
Computational study of shock-wave interaction with solid obstacles using immersed boundary methods
TL;DR: In this article, an immersed boundary (IB) method based on a direct forcing is coupled with a high-order weighted-essentially nonoscillatory (WENO) scheme to simulate fluid-solid interaction (FSI) problems with complex geometries.
Proceedings ArticleDOI
Synergistic Smart Morphing Aileron
TL;DR: In this article, the Synergistic Smart Morphing Aileron (SSMA) is presented, which overcomes the individual limitations of the constituent materials, driven by shape memory alloy and micro-fiber composite actuators.
Proceedings ArticleDOI
Performance of Pylons Upstream of a Cavity-Based Flameholder in Non-Reacting Supersonic Flow (POSTPRINT)
TL;DR: In this paper, the authors investigated the enhancement of fuel-air mixing with small pylons that project into the supersonic flow upstream of a flame holder, and found that the pylon increase fuel penetration, while not adding significantly to shock losses or overall mixing.
Journal ArticleDOI
Design and Analysis of a Light Cargo UAV Prototype
TL;DR: The basic aerodynamic and stability analysis that was used in the preliminary phase of the light UAV design are presented and could be utilized to further improve the aerodynamics of the existing design, and enhance stability and performance characteristics of theLight cargo UAV.