Abstract
The heat transfer coefficient is experimentally measured around a cylinder heated by ohmic effect. The heating technique approximates a uniform heat flux on the cylinder’s wall. The model is placed downstream of different perturbing grids in a wind tunnel. The Reynolds number based on the cylinder’s diameter varies between 10820 and 48830. At large distances from the grids, the heat transfer is significantly enhanced by using a fractal and a single square grid designed to increase turbulence intensity with a low blockage ratio. Significant differences exist between the heat transfer profiles measured in the production and in the decay region in positions where turbulence intensity is the same.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
R. Gomes-Fernandes, B. Ganapathisubramani, J.C. Vassilicos, Particle image velocimetry study of fractal-generated turbulence. J. Fluid Mech. 711, 306–336 (2012)
G.F. Hewitt, Heat Exchanger Design Handbook (Begell House, New York, 2008)
D. Hurst, J.C. Vassilicos, Scalings and decay of fractal-generated turbulence. Phys. Fluids 19, 035103 (2007)
G.W. Lowery, R.I. Vachon, The effect of turbulence on heat transfer from heated cylinders. Int. J. Heat Mass Transf. 18, 1229–1242 (1975)
N. Mazellier, J.C. Vassilicos, Turbulence without Richardson-Kolmogorov cascade. Phys. Fluids 22, 075101 (2010)
C. Sak, R. Liu, D.S. Ting, G.W. Rankin, The role of turbulence length scale and turbulence intensity on forced convection from a heated horizontal circular cylinder. Exp. Therm. Fluid Sci. 31, 279–289 (2007)
S. Sanitjai, R.J. Goldstein, Effect of free-stream turbulence on local mass transfer from a circular cylinder. Int. J. Heat Mass Transf. 44, 2863–2875 (2001)
S. Sanitjai, R.J. Goldstein, Heat Transfer from a circular cylinder to mixtures of water and ethylene glycol. Int. J. Heat Mass Transf. 47, 4785–4794 (2004)
N.T. Van Dresar, R.E. Mayle, A quasi-steady approach of wake effects on leading edge transfer rates. J. Turbomach. 111, 483–490 (1989)
G.J. Van Fossen, R.J. Simoneau, C.Y. Ching, Influence of turbulence parameters, Reynolds number, and body shape on stagnation-region heat transfer. J. Heat Transf. 117, 597–603 (1995)
A.A. Zukauskas, Heat transfer from tubes in cross-flow. Adv. Heat Transf. 8, 93–160 (1972)
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2016 Springer International Publishing Switzerland
About this paper
Cite this paper
Melina, G., Bruce, P.J.K., Hewitt, G.F., Vassilicos, J.C. (2016). Heat Transfer Enhancement by Grid-Generated Turbulence for a Cylinder in Crossflow. In: Segalini, A. (eds) Proceedings of the 5th International Conference on Jets, Wakes and Separated Flows (ICJWSF2015). Springer Proceedings in Physics, vol 185. Springer, Cham. https://doi.org/10.1007/978-3-319-30602-5_16
Download citation
DOI: https://doi.org/10.1007/978-3-319-30602-5_16
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-30600-1
Online ISBN: 978-3-319-30602-5
eBook Packages: Physics and AstronomyPhysics and Astronomy (R0)