Assessment of d'Alembert's paradox in panel methods by tangency correction (CROSBI ID 243482)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
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
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
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