### A Computational Analysis of Flow Development Through a Constant Area S-Duct

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#### Abstract

In the present investigation the distribution of wall static pressure and mean velocity are experimentally studied on a S-shape constant area rectangular curved duct of 45°/45° angle of turn with an aspect ratio of 2.0. The experiment is carried out at mass averaged mean velocity of 40m/s. The velocity distribution shows the bulk flow shifting from outer wall to the inner wall in the first half and from inner wall to the outer wall in the second half along the flow passage of sigmoid duct is very instinct. Due to the imbalance of centrifugal force and radial pressure gradient, secondary motions in the form of counter rotating vortices have been generated within the curved duct. The experimental results then were numerically validated with the help of Fluent, which shows a good agreement between the experimental and predicted results. *Copyright © 2013 Praise Worthy Prize - All rights reserved.*

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M.,Rowe, Measurements and computations flow in pipe bends, Journal of Fluid Mechanics,Vol 43, n 4, pp. 771-783,1970.

S Bansod, and P. Bradshaw, The Flow in S-shaped Ducts, Aeronautical Quarterly, Vol.. 23, pp. 131-140, 1972.

M. M. Enayet, Gibson, M. M., Taylor, A. M. K. P. and Yianneskis, M., Laser Doppler measurements of Laminar and Turbulent Flow in a Bend, Int. Journal of Heat and Fluid Flow, Vol 3, pp. 211-217, 1982.

J. Azzola, A. C.H Humphrey, H. Iacovides, and B. E. Launder, Developing Turbulent Flow in a U-Bend circular cross-section: Measurement and Computations, Trans. ASME, Journal of Fluid Engineering, Vol. 108, pp. 214-221, 1986.

H., Lacovides, B. E. Launder, and P. A. Loizou, Numerical Computation of Turbulent Flow through a Squared Sectioned 90° Bend, Int. Journal of Heat and Fluid Flow, Vol 8,n 4, pp. 320-325,1987.

A. M. K. P. Taylor,., J. H. Whitelaw. and M. Yianneskis, Curved Ducts with Strong Secondary Motion: Velocity Measurements of Developing Laminar and Turbulent Flow, Trans. ASME, Journal of Fluid Engineering, Vol 104, pp. 350-358, 1982.

S. Thangam,and N.,Hur, Laminar secondary flows in curved rectangular ducts, Journal of Fluid Mechanics, Vol 217, pp. 421-440,1990.

W. J Kim,. and V. C. Patel, Origin and Decay of longitudinal Vortices in the development of flow in a curved rectangular duct, Trans. ASME, Journal of Fluid Engineerin, Vol. 116, n 3, pp. 45-52,1994.

J. M.,Burns, H. H. Fernholz, and P. A Mankewitz,. An experimental investigation of a three dimensional turbulent boundary layer in an S-shaped duct, Journal of Fluid Mechanics, Vol. .393, pp.175-213,1999.

N. Singh, S. N. Singh and V., Seshadri, Flow Characteristics of an Asymmetric Y-Shaped Duct, Proceedings of 31st National Conference on Fluid Mechanics and Fluid Power, Jadavpur University, 2004, pp. 749-757

A. J. Benin, F Gul, and E Pasqualotto, Loss Correlations for Developing Turbulent Pipe Flow, (2007) International Review of Mechanical Engineering (IREME) 1 (1), pp. 18-24.

M. Kahrom, and A. Shokrgozar, Evaluation of Turbulence Models in Predicting Turbulence Penetration into Low Reynolds Number Regions, (2010) International Review of Mechanical Engineering (IREME), 4 (1), pp. 51-59.

P. K. Sinha., A. N. Mullick, B. Halder and B. Majumdar, A Parametric Investigation of Flow through an Annular Curved Diffuser, (2010) International Review of Aerospace Engineering (IREASE), 3 (5), pp. 249-256.

A.K. Biswas, Prasanta. K. Sinha., A. N. Mullick and B. Majumdar, A CFD Investigation of Flow through a Constant area Curved Duct, (2012) International Review of Mechanical Engineering (IREME), 6 (7), pp. 249-256.

A. F. Elsafty, M. M. Abo Elazm, Improving Air Quality in Enclosed Parking Facilities Using Ventilation System Design with the Aid of CFD Simulation, (2009) International Review of Mechanical Engineering (IREME), 3 (6), pp. 796-807.

A.M. Ahmed,. M. Ahmad and A. Rahim, Numerical Prediction of Effect on Air Flow Rate in the Presence of Heated Obstruction within a Room, (2009) International Review of Mechanical Engineering (IREME), 4 (6), pp. 702-710.

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