Characterisation Study of Taylor-Couette Flow in Fluid Mixture of Used Cooking Oil and Water

Adhi Kusumastuti; Nur Qudus; Widi Astuti

doi:10.37934/arfmts.80.2.106114

Authors

Adhi Kusumastuti Faculty of Engineering Universitas Negeri Semarang, Kampus UNNES Sekaran, Gunungpati, 50229 Semarang, Indonesia
Nur Qudus Faculty of Engineering Universitas Negeri Semarang, Kampus UNNES Sekaran, Gunungpati, 50229 Semarang, Indonesia
Widi Astuti Faculty of Engineering Universitas Negeri Semarang, Kampus UNNES Sekaran, Gunungpati, 50229 Semarang, Indonesia

DOI:

https://doi.org/10.37934/arfmts.80.2.106114

Keywords:

Taylor-Couette, Reynolds number, Taylor number, shear stress, energy loss distribution

Abstract

A study was done to investigate effect of volume ratio of water and used cooking oil to the characteristic of Taylor-Couette flow in terms of shear stress and energy loss distribution within Taylor-Couette column. The characterisation study was carried out by applying water and waste cooking oil at volume ratio of 1:1, 1:3, 1:5, and 1:6. The inner cylinder was rotated at 300 rpm while the outer cylinder was kept static. It was found that optimal volume ratio for wastewater treatment was 1:1, shown by the phenomenon of Modulated Wavy Vortices flow regime. The highest Taylor number of 1.01x10⁷ was also achieved in the volume ratio, while the shear stress was -1.99.

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