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Assessment of d'Alembert's paradox in panel methods by tangency correction (CROSBI ID 243482)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Bašić, Josip ; Degiuli, Nastia ; Ban, Dario Assessment of d'Alembert's paradox in panel methods by tangency correction // Engineering analysis with boundary elements, 85 (2017), 136-141. doi: 10.1016/j.enganabound.2017.10.002

Podaci o odgovornosti

Bašić, Josip ; Degiuli, Nastia ; Ban, Dario

engleski

Assessment of d'Alembert's paradox in panel methods by tangency correction

The aim of this study is to introduce a correction for panel methods in order to obtain correct viscous pressure drag of a steadily moving body in a viscous fluid. The boundary tangency correction implemented through a surface normal deflection term was added into a panel method implementation. A quadratic programming algorithm was used to solve inverse problems in order to prove the correction well- posedness and to obtain accurate surface pressure distribution, based on the experimental data. The experimental surface pressure distributions were collected from the literature for circular cylinders in steady uniform flow. The solutions of normal deflections were validated and the direct connection of the introduced correction to the boundary layer displacement thickness was found, which can simplify the process of viscous- inviscid coupling between integral boundary layer and panel methods.

potential flow ; panel methods ; flow around cylinder ; d’Alembert’s paradox ; viscous pressure drag

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Podaci o izdanju

85

2017.

136-141

objavljeno

0955-7997

1873-197X

10.1016/j.enganabound.2017.10.002

Povezanost rada

Brodogradnja, Strojarstvo, Zrakoplovstvo, raketna i svemirska tehnika

Poveznice
Indeksiranost