Ketidakstabilan Aliran Sekunder pada Saluran Lengkung Berpenampang Persegi

Authors

  • Nursubyakto . Jurusan Teknik Mesin, Fakultas Teknik, Universitas Merdeka Malang, Malang

Keywords:

Secondary flow, curved channel, rectangular cross section.

Abstract

Secondary flow is the counter rotating vortex that appears in the channel when a fluid flows in a curved channel. The occurence of this secondary flow is caused by imbalance between centrifugal force and pressure on the outer wall of the channel. When Dean number is increased the additional secondary flow appears to the main secondary flow and/or disappears. This paper investigated the occurence of the additional secondary flow to the main flow with rectangular cross section and the radius of curvature varied from 1 to 10. The result shows that increament of curvature ratio the additional Dean voritces appears and beyond of ratio of 4 is constant. The effect of the additional secondary flow to the friction factor is also predicted.

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Published

2011-06-17

Issue

Vol. 12 No. 2 (2010): OCTOBER 2010

Section

Articles

License

Jurnal Teknik Mesin is publihed by the Mechanical Engineering Department, Petra Christian University, Indonesia


All articles and their contents are published and distributed under the international license of Creative Commons Attribution License (CC BY).