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Experimental study of circle grid fractal pattern on turbulent intensity in pipe now

Manshoor, Bukhari and Zaman, Izzuddin and Othman, M. F. and Khalid , Amir (2013) Experimental study of circle grid fractal pattern on turbulent intensity in pipe now. In: International Conference on Mechanical Engineering Research (ICMER2013), 1-3 July 2013, Kuantan, Pahang.

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Abstract

Fractal turbulence is deemed much more efficient than grid turbulence in terms of a turbulence generation. In this paper, the hotwire experimental results for the circle grids fractal pattern as a turbulent generator will be present. The self-similar edge characteristic of the circle grid fractal pattern is thought to play a vital role in the enhancement of turbulent intensity. Three different beta ratios of perforated plates based on circle grids fractal pattern were used in the experimental work and each paired with standard circle grids with similar porosity. The objectives were to study the fractal scaling influence on the flow and also to explore the potential of the circle grids fractal pattern in enhancing the turbulent intensity. The results provided an excellent insight of the fractal generated turbulence and the fractal flow physics. Across the circle grids fractal pattern, the pressure drop was lower but the turbulent intensity was higher than those across the paired standard circle grids.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: turbulent intensity; fractal; pressure drop; hot wire anemometer
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA349-359 Mechanics of engineering. Applied mechanics
Divisions: Faculty of Mechanical and Manufacturing Engineering > Department of Plant and Automotive Engineering
Depositing User: Normajihan Abd. Rahman
Date Deposited: 11 Jul 2013 00:03
Last Modified: 21 Jan 2015 08:02
URI: http://eprints.uthm.edu.my/id/eprint/4015
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