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Relationship of Wing Drag to Entropy Production
Technical Paper
2005-01-3359
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Much of the basic understanding of aerodynamics is a result of research conducted in the early part of the twentieth century. A prominent example is the understanding of the cause of the drag due to lift, or induced drag. In this explanation the drag due to lift is connected with the trailing vortices that can be seen behind a wing. In this paper an explanation is derived for the existence of all wing drag, including drag due to lift. The drag formulation arises from the relationship of surface pressure to entropy generated predominantly by vorticity in the flow field. This new formulation allows the total drag to be split into the contributions made by different flow features. It also leads to suggestions on how to reduce drag
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Authors
Citation
Nixon, D., "Relationship of Wing Drag to Entropy Production," SAE Technical Paper 2005-01-3359, 2005, https://doi.org/10.4271/2005-01-3359.Also In
References
- Nixon, D. “A Relationship Between Wave Drag and Induced Drag” SAE Paper 2003-02-3021 2003
- Srinivasan, G. R. Baeder, J. D. “TURNS A Free-Wake Euler/Navier-Stokes Numerical Method for Helicopter Rotors” AIAA Journal 31 No. 5 1993
- Spalart, P. R Allmaras, S. R. “A One Equation Turbulence Model for Aerodynamic Flows” AIAA Paper 92-0439 1992
- Anderson, D. A. et al “Computational Fluid Mechanics and Heat Transfer” Hemisphere 1984
- Rokhsaz, K “Effect of Viscous Drag on Optimum Spanwise Lift Distribution” J. of Aircraft 30 No. 1 1993
- Raymer, D. P. “Aircraft Design: A Conceptual Approach” AIAA Education Series 1989
- Redeker, G. “DLR-F4 Wing Body Configuration” AGARD II