Can I read Design Optimization of Natural Laminar Flow Bodies in Compressible Flow on EtoBox?

Design Optimization of Natural Laminar Flow Bodies in Compressible Flow by Dodbele, Simha S. is a nonfiction available to read on EtoBox.

What is Design Optimization of Natural Laminar Flow Bodies in Compressible Flow about?

An optimization method has been developed to design axisymmetric body shapes such as fuselages, nacelles, and external fuel tanks with increased transition Reynolds numbers in subsonic compressible flow. The new design method involves a constraint minimization procedure coupled with analysis of the inviscid and viscous flow regions and linear stability analysis of the compressible boundary-layer. In order to reduce the computer time, Granville's transition criterion is used to predict boundary-layer transition and to calculate the gradients of the objective function, and linear stability theory coupled with the e(exp n)-method is used to calculate the objective function at the end of each design iteration. Use of a method to design an axisymmetric body with extensive natural laminar flow is illustrated through the design of a tiptank of a business jet. For the original tiptank, boundary layer transition is predicted to occur at a transition Reynolds number of 6.04 x 10(exp 6). For the designed body shape, a transition Reynolds number of 7.22 x 10(exp 6) is predicted using compressible linear stability theory coupled with the e(exp n)-method

Who reads Design Optimization of Natural Laminar Flow Bodies in Compressible Flow?

Author

Dodbele, Simha S.

Publisher

National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Program, 1993.

Published

1993

Language

EN

Category

nonfiction