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A numerical study on a chaotic stirring in a model for a single screw extruder
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 Title & Authors
A numerical study on a chaotic stirring in a model for a single screw extruder
Seo,Yong-Gwon; Kim,Yong-Gyun; Mun, Jong-Chun;
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 Abstract
Numerical study on the chaotic stirring of the screw extruder model proposed has been performed. The velocity field was used in obtaining the trajectories of passive particles for studying the stirring effect of the screw extruder. Two nonlinear dynamical tools, that are Poincare sections and Lyapunov exponents, were used in analysing the stirring effect. The Poincare sections and the Lyapunov exponents show that the stirring effect is most satisfactory, when n(the number of flights in a section) is 1, for the case a (aspect ratio ; flight height divided by the spacing between flights) being O.1. It is also required to set n=3, or 5 at a= 0.2, 0.3 for a uniform stirring.
 Keywords
Chaotic Stirring;Poincare Section;Lyapunov Ecponent;Single Screw Extruder;
 Language
Korean
 Cited by
1.
유한요소법을 이용한 폴리머 압출 공정해석에 관한 연구,예영수;김홍범;이재욱;김낙수;

대한기계학회논문집A, 2005. vol.29. 1, pp.145-155 crossref(new window)
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