Forced Convection Heat Transfer Analysis of Square Shaped Dimples on Flat Plates

Jamil Ahmed; Hasibur Rahman Sardar; Abdul Razak Kaladgi

doi:doi:10.11648/j.ajee.20150305.11

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Forced Convection Heat Transfer Analysis of Square Shaped Dimples on Flat Plates

Jamil Ahmed, Hasibur Rahman Sardar, Abdul Razak Kaladgi

Published in American Journal of Energy Engineering (Volume 3, Issue 5)

Received: 24 May 2015 Accepted: 29 June 2015 Published: 10 August 2015

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Abstract

Dimples play a very important role in heat transfer enhancement of electronic cooling systems. This work mainly deals with experimental investigation of forced convection heat transfer over square shaped dimples on a flat aluminum plate under external laminar flow conditions. Experimental measurements on heat transfer rate and friction characteristics of air (with various inlet flow rates) on a flat plate were conducted. Both staggered and inline arrangements of the dimples were considered for the analysis. From the obtained results, it has been observed that the heat transfer coefficient were high for the plate having dimples.

Published in	American Journal of Energy Engineering (Volume 3, Issue 5)
DOI	10.11648/j.ajee.20150305.11
Page(s)	66-70
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2015. Published by Science Publishing Group

Keywords

Forced Convection, Dimples, Friction Coefficient, Passive Techniques

References

[1]	Zhang, D., Zheng, L., Xie, G., and Xie, Y., An Experimental Study on Heat Transfer enhancement of Non-Newtonian Fluid in a Rectangular Channel with Dimples/Protrusions, Transactions of the ASME, Vol. 136, pp.021005-10,2014.
[2]	Beves, C.C., Barber, T.J., and Leonardi, E., An Investigation of Flow over Two-Dimensional Circular Cavity. In 15th Australasian Fluid Mechanics Conference, the University of Sydney, Australia, pp.13-17, 2004.
[3]	Kuethe A. M., Boundary Layer Control of Flow Separation and Heat Exchange. US Patent No. 1191, 1970.
[4]	Afanasyev, V.N., Chudnovsky, Y.P., Leontiev, A.I., and Roganov, P.S., Turbulent flow friction and heat transfer characteristics for spherical cavities on a flat plate. Experimental Thermal Fluid Science, Vol. 7, Issue 1, pp. 1–8, 1993.
[5]	Chyu, M.K., Yu, Y., Ding, H., Downs, J.P., and Soechting, F.O., Concavity enhanced heat transfer in an internal cooling passage. In Orlando international Gs Turbine & Aero engine Congress & Exhibition, Proceedings of the 1997(ASME paper 97-GT-437), 1997.
[6]	Mahmood, G.I., Hill, M.L., Nelson, D.L., Ligrani, P.M., Moon, H.K., and Glezer, B., Local heat transfer and flow structure on and above a dimpled surface in a channel. J Turbo mach, Vol.123, Issue 1, pp: 115–23, 2001.
[7]	Mahmood, G. I., and Ligrani, P. M., Heat Transfer in a Dimpled Channel: Combined Influences of Aspect Ratio, Temperature Ratio, Reynolds Number, and Flow Structure. Int. J. Heat Mass Transfer, Vol. 45, pp.2011–2020, 2002.
[8]	Xie, G. N., Sunden, B., and Zhang, W. H., Comparisons of Pins/Dimples Protrusions Cooling Concepts for an Internal Blade Tip-Wall at High Reynolds Numbers. ASME J. Heat Transfer, Vol. 133, Issue 6, pp. 0619021-0619029, 2011.
[9]	Gadhave, G., and Kumar. P. Enhancement of forced Convection Heat Transfer over Dimple Surface-Review. International Multidisciplinary e - Journal .Vol-1, Issue-2, pp. 51-57, 2012
[10]	Katkhaw, N., Vorayos, N., Kiatsiriroat, T., Khunatorn, Y., Bunturat, D., and Nuntaphan. A. Heat transfer behavior of flat plate having 450 ellipsoidal dimpled surfaces. Case Studies in Thermal Engineering, vol.2, pp. 67–74,2014
[11]	Patel, I.H., and Borse, S.H.Experimental investigation of heat transfer enhancement over the dimpled surface. International Journal of Engineering Science and Technology, Vol.4, Issue6, pp.3666–3672, 2012.

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APA Style

Jamil Ahmed, Hasibur Rahman Sardar, Abdul Razak Kaladgi. (2015). Forced Convection Heat Transfer Analysis of Square Shaped Dimples on Flat Plates. American Journal of Energy Engineering, 3(5), 66-70. https://doi.org/10.11648/j.ajee.20150305.11

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ACS Style

Jamil Ahmed; Hasibur Rahman Sardar; Abdul Razak Kaladgi. Forced Convection Heat Transfer Analysis of Square Shaped Dimples on Flat Plates. Am. J. Energy Eng. 2015, 3(5), 66-70. doi: 10.11648/j.ajee.20150305.11

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AMA Style

Jamil Ahmed, Hasibur Rahman Sardar, Abdul Razak Kaladgi. Forced Convection Heat Transfer Analysis of Square Shaped Dimples on Flat Plates. Am J Energy Eng. 2015;3(5):66-70. doi: 10.11648/j.ajee.20150305.11

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@article{10.11648/j.ajee.20150305.11,
  author = {Jamil Ahmed and Hasibur Rahman Sardar and Abdul Razak Kaladgi},
  title = {Forced Convection Heat Transfer Analysis of Square Shaped Dimples on Flat Plates},
  journal = {American Journal of Energy Engineering},
  volume = {3},
  number = {5},
  pages = {66-70},
  doi = {10.11648/j.ajee.20150305.11},
  url = {https://doi.org/10.11648/j.ajee.20150305.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajee.20150305.11},
  abstract = {Dimples play a very important role in heat transfer enhancement of electronic cooling systems. This work mainly deals with experimental investigation of forced convection heat transfer over square shaped dimples on a flat aluminum plate under external laminar flow conditions. Experimental measurements on heat transfer rate and friction characteristics of air (with various inlet flow rates) on a flat plate were conducted. Both staggered and inline arrangements of the dimples were considered for the analysis. From the obtained results, it has been observed that the heat transfer coefficient were high for the plate having dimples.},
 year = {2015}
}

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TY  - JOUR
T1  - Forced Convection Heat Transfer Analysis of Square Shaped Dimples on Flat Plates
AU  - Jamil Ahmed
AU  - Hasibur Rahman Sardar
AU  - Abdul Razak Kaladgi
Y1  - 2015/08/10
PY  - 2015
N1  - https://doi.org/10.11648/j.ajee.20150305.11
DO  - 10.11648/j.ajee.20150305.11
T2  - American Journal of Energy Engineering
JF  - American Journal of Energy Engineering
JO  - American Journal of Energy Engineering
SP  - 66
EP  - 70
PB  - Science Publishing Group
SN  - 2329-163X
UR  - https://doi.org/10.11648/j.ajee.20150305.11
AB  - Dimples play a very important role in heat transfer enhancement of electronic cooling systems. This work mainly deals with experimental investigation of forced convection heat transfer over square shaped dimples on a flat aluminum plate under external laminar flow conditions. Experimental measurements on heat transfer rate and friction characteristics of air (with various inlet flow rates) on a flat plate were conducted. Both staggered and inline arrangements of the dimples were considered for the analysis. From the obtained results, it has been observed that the heat transfer coefficient were high for the plate having dimples.
VL  - 3
IS  - 5
ER  -

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Author Information

Jamil Ahmed

Department of Computer science and Engineering, P.A College of Engineering, VTU, Mangalore, India
Hasibur Rahman Sardar

Department of Electronics & Communication Engineering, P.A College of Engineering, VTU, Mangalore, India
Abdul Razak Kaladgi

Department of Mechanical Engineering, P.A College of Engineering, VTU, Mangalore, India

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APA Style

Jamil Ahmed, Hasibur Rahman Sardar, Abdul Razak Kaladgi. (2015). Forced Convection Heat Transfer Analysis of Square Shaped Dimples on Flat Plates. American Journal of Energy Engineering, 3(5), 66-70. https://doi.org/10.11648/j.ajee.20150305.11

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ACS Style

Jamil Ahmed; Hasibur Rahman Sardar; Abdul Razak Kaladgi. Forced Convection Heat Transfer Analysis of Square Shaped Dimples on Flat Plates. Am. J. Energy Eng. 2015, 3(5), 66-70. doi: 10.11648/j.ajee.20150305.11

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AMA Style

Jamil Ahmed, Hasibur Rahman Sardar, Abdul Razak Kaladgi. Forced Convection Heat Transfer Analysis of Square Shaped Dimples on Flat Plates. Am J Energy Eng. 2015;3(5):66-70. doi: 10.11648/j.ajee.20150305.11

Copy | Download

@article{10.11648/j.ajee.20150305.11,
  author = {Jamil Ahmed and Hasibur Rahman Sardar and Abdul Razak Kaladgi},
  title = {Forced Convection Heat Transfer Analysis of Square Shaped Dimples on Flat Plates},
  journal = {American Journal of Energy Engineering},
  volume = {3},
  number = {5},
  pages = {66-70},
  doi = {10.11648/j.ajee.20150305.11},
  url = {https://doi.org/10.11648/j.ajee.20150305.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajee.20150305.11},
  abstract = {Dimples play a very important role in heat transfer enhancement of electronic cooling systems. This work mainly deals with experimental investigation of forced convection heat transfer over square shaped dimples on a flat aluminum plate under external laminar flow conditions. Experimental measurements on heat transfer rate and friction characteristics of air (with various inlet flow rates) on a flat plate were conducted. Both staggered and inline arrangements of the dimples were considered for the analysis. From the obtained results, it has been observed that the heat transfer coefficient were high for the plate having dimples.},
 year = {2015}
}

Copy | Download

TY  - JOUR
T1  - Forced Convection Heat Transfer Analysis of Square Shaped Dimples on Flat Plates
AU  - Jamil Ahmed
AU  - Hasibur Rahman Sardar
AU  - Abdul Razak Kaladgi
Y1  - 2015/08/10
PY  - 2015
N1  - https://doi.org/10.11648/j.ajee.20150305.11
DO  - 10.11648/j.ajee.20150305.11
T2  - American Journal of Energy Engineering
JF  - American Journal of Energy Engineering
JO  - American Journal of Energy Engineering
SP  - 66
EP  - 70
PB  - Science Publishing Group
SN  - 2329-163X
UR  - https://doi.org/10.11648/j.ajee.20150305.11
AB  - Dimples play a very important role in heat transfer enhancement of electronic cooling systems. This work mainly deals with experimental investigation of forced convection heat transfer over square shaped dimples on a flat aluminum plate under external laminar flow conditions. Experimental measurements on heat transfer rate and friction characteristics of air (with various inlet flow rates) on a flat plate were conducted. Both staggered and inline arrangements of the dimples were considered for the analysis. From the obtained results, it has been observed that the heat transfer coefficient were high for the plate having dimples.
VL  - 3
IS  - 5
ER  -

Copy | Download