[Faculty] Fwd: [CSRC-SDSU COLLOQUIUM]: Minimum Induced Drag Theorems for Innovative Wing Systems

[Jose Castillo]

*DATE*:  Friday, April 29th, 2016

*TITLE*:   Minimum Induced Drag Theorems for Innovative Wing Systems

*TIME*:  3:30 PM

*LOCATION*:  GMCS 214

*SPEAKER*:  Dr. Luciano Demasi. Associate Professor, Department of
Aerospace Engineering and Computational Science Research Center, San Diego
State University.

*ABSTRACT*:  Induced drag is an important component of the total airplane
drag, especially at low speed conditions.
Reducing it is one of the top priorities for the design of future
sustainable configurations which are aimed to significantly cut pollution
and emissions.
This is one of the driving motivations behind the idea of innovative
systems such as Box Wings: it is well known that non-planar geometry has
high benefits in terms of induced drag.
A configuration-invariant computationally efficient induced drag
minimization procedure, tailored for the preliminary design phases of
generic non-planar multi-wing systems is presented. The method is based on
a variational approach, which leads to the formulation of a system of
coupled integral equations in the unkown circulation distributions.
Prandtl's problem on the optimal conditions for Box Wings has been solved
and the minimum induced drag conditions for closed systems have been
related to the ones corresponding to C-wings and Biwings.
Several new induced drag theorems have been introduced providing design
indications on generic wing systems without the need of computationally
expensive simulations.

*HOST*: Dr. Jose Castillo

_______________________________________________
SDSU Computational Science Research Center
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Computational Science Research Center

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San Diego State University

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 http://www.csrc.sdsu.edu/mimetic-book/
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