EXPERIMENTAL AND NUMERICAL STUDY ON THE FLOW VISUALIZATION IN A TRI-HELICAL STATIC MIXER

Authors

Kuo-Tung Chang, Graduate Institute of Electro-Mechanical Engineering, Ming Chi University of Technology, Taishan, Taipei County, Taiwan 243, R.O.C.
Jer-Huan Jang, Graduate Institute of Electro-Mechanical Engineering, Ming Chi University of Technology, Taishan, Taipei County, Taiwan 243, R.O.C.Follow
Teng-Chuang Lai, Graduate Institute of Electro-Mechanical Engineering, Ming Chi University of Technology, Taishan, Taipei County, Taiwan 243, R.O.C.
Jun-Nan Chen, Graduate Institute of Electro-Mechanical Engineering, Ming Chi University of Technology, Taishan, Taipei County, Taiwan 243, R.O.C.

Abstract

In this work, the flow visualization in a tri-helical static mixer has been investigated in detailed both experimentally and numerically. The static mixer used for the present study consists of four elements with a series of alternating left and right helical elements. Each element has the aspect ratio of 1.5 (i.e., L/D = 1.5) and twisted angle of 180°. The objective of this investigation is mainly to explore the flow pattern inside a tri-helical static mixer due to its novelty and originality. It is clearly observed that the flows at the trailing edge for both numerical and experimental results are in a tri-lobe-like pattern. Apparently, the numerical solution matches with experimental result. It is also found that the rotation tri-lobe-like pattern flow decreases as the flow goes downstream due to viscous dissipation as well as the decrease of Reynolds number.

Recommended Citation

Chang, Kuo-Tung; Jang, Jer-Huan; Lai, Teng-Chuang; and Chen, Jun-Nan (2011) "EXPERIMENTAL AND NUMERICAL STUDY ON THE FLOW VISUALIZATION IN A TRI-HELICAL STATIC MIXER," Journal of Marine Science and Technology: Vol. 19: Iss. 4, Article 8.
DOI: 10.51400/2709-6998.2180
Available at: https://jmstt.ntou.edu.tw/journal/vol19/iss4/8