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Simulation and development of performance correlations of 3-D turning diffuser via ACFD

Nordin, Normayati and Abdul Karim, Zainal Ambri and Othman, Safiah and R. Raghavan, Vijay (2015) Simulation and development of performance correlations of 3-D turning diffuser via ACFD. In: 4th Biannual Post Graduate Conference, 18th - 20th November 2015, Universiti Teknologi PETRONAS.

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This paper aims to intensively simulate the performances of 3-D turning diffuser by varying geometrical and operating parameters and to develop the performance correlation by means of Asymptotic Computational Fluid Dynamic (ACFD) technique. The performances of turning diffusers were measured primarily by outlet pressure recovery coefficient, Cp and flow uniformity index, out. The geometrical and operating parameters namely inflow Reynolds number (Rein = 5.786 x 104 – 1.775 x 105), inlet throat width ratio (Lin/W1 = 1.5 - 25.0) and outlet-inlet configurations (W2/W1 = 1.067 – 2.667 and X2/X1 = 1.118 – 2.778) were varied. The performance correlations as a function of geometrical and operating parameters, i.e. Cp = f (Lin/W1, W2/W1, X2/X1, Rein) and out = f (Lin/W1, W2/W1, X2/X1, Rein) are successfully developed via ACFD with deviation to the experiment approximately of 7%.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: ACFD; CFD; turning diffuser
Subjects: T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Mechanical and Manufacturing Engineering > Department of Energy and Thermofluid Engineering
Depositing User: Mrs. Normayati Nordin
Date Deposited: 09 Dec 2015 06:58
Last Modified: 09 Dec 2015 06:58
URI: http://eprints.uthm.edu.my/id/eprint/7399
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