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Computational Fluid Dynamics (CFD): Future role and requirements as viewed by an applied aerodynamicistThe problem of designing the wing-fuselage configuration of an advanced transonic commercial airliner and the optimization of a supercruiser fighter are sketched, pointing out the essential fluid mechanical phenomena that play an important role. Such problems suggest that for a numerical method to be useful, it must be able to treat highly three dimensional turbulent separations, flows with jet engine exhausts, and complex vehicle configurations. Weaknesses of the two principal tools of the aerodynamicist, the wind tunnel and the computer, suggest a complementing combined use of these tools, which is illustrated by the case of the transonic wing-fuselage design. The anticipated difficulties in developing an adequate turbulent transport model suggest that such an approach may have to suffice for an extended period. On a longer term, experimentation of turbulent transport in meaningful cases must be intensified to provide a data base for both modeling and theory validation purposes.
Document ID
19780011846
Document Type
Conference Paper
Authors
Yoshihara, H.
(Boeing Co. Seattle, WA, United States)
Date Acquired
August 9, 2013
Publication Date
February 1, 1978
Publication Information
Publication: NASA. Ames Res. Center Future Computer Requirements for Computational Aerodynamics
Subject Category
Fluid Mechanics And Heat Transfer
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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