International Scientific Journal


Cutting fins of the plate heat sinks into multi-numbers of slides instead of one slide fin is a technique to improve the performance of the heat sink. One, two, three, and four slides have been studied numerically. The slides have been arranged in staggered arrangement. The study has been carried out on two different flow directions (impinging and parallel). The performance of the heat sink under the studied conditions has been represented through calculation of heat sink effectiveness, thermal resistance, pressure drop, pumping power, and Nusselt number. The studied range of Reynolds number is from 1333 to 5334. The results show that parallel flow gives lower thermal resistance than impinging flow for all studied cases. The pumping power required for high Reynolds number in case of parallel flow increases by around 155% with Case 4 (four slides) as compared by Case 1 (one slide), while it is slightly affected in case of impinging flow. Using three slides with impinging flow represents an acceptable decrement in thermal resistance with low change in the required pumping power. In case of parallel flow, the resulting change in the heat sink performance, as the number of slides increases, is not proportional to the large increase in the pumping power.
PAPER REVISED: 2020-12-25
PAPER ACCEPTED: 2021-01-05
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2021, VOLUME 25, ISSUE Issue 6, PAGES [4683 - 4693]
  1. Khattak, Z., Ali, H. M., Air cooled heat sink geometries subjected to forced flow: A critical Review, International Journal of Heat and Mass Transfer, 130 (2019), pp. 141-161
  2. Kim, D.K., Kim, S. J., Bae, J.K., Comparison of thermal performances of plate-fin and pin-fin heat sinks subject to an impinging flow, Int. Journal of Heat and Mass Transfer, 52 (2009), pp. 3510-3517
  3. Wong, K.C., Indran, S., Impingement heat transfer of a plate fin heat sink with fillet profile, International Journal of Heat and Mass Transfer, 65 (2013), pp. 1-9
  4. Hussain A. A., Freegah, B., Khalaf B. S., Towsyfyan, H., Numerical investigation of heat transfer enhancement in plate-fin heat sinks: Effect of flow direction and fillet profile, Case Studies in Thermal Engineering, 13 (2019), 100388
  5. Jeon, D., Byon, C., Thermal performance of plate fin heat sinks with dual-height fins subject to natural convection, International Journal of Heat and Mass Transfer, 113 (2017), pp. 1086-1092
  6. Saravanakumara T., Kumar, D. S., Performance analysis on heat transfer characteristics of heat SINK with baffles attachment, International Journal of Thermal Sciences, 142 (2019), pp. 14-19
  7. Huang, C. H., Tung, P. W., Numerical and experimental studies on an optimum Fin design problem to determine the deformed wavy-shaped heat sinks, Int. Journal of Thermal Sciences, 151 (2020), 106282
  8. Duan, Z., Lv, X., Ma, H., Su, L., Zhang, M., Analysis of Flow Characteristics and Pressure Drop for an Impinging Plate Fin Heat Sink with Elliptic Bottom Profiles, Applied Science, 10 (2020), 225, doi:10.3390/app10010225
  9. Hosseinirad, E., Khoshvaght-Aliabadi, M., Hormozi, F., Effects of splitter shape on thermal-hydraulic characteristics of plate-pin-fin heat sink (PPFHS), International Journal of Heat and Mass Transfer, 143 (2019), 118586
  10. Alfellag, M. A., Ahmed, H. E., Kherbeet, A. Sh., Numerical simulation of hydrothermal performance of minichannel heat sink using inclined slotted plate-fins and triangular pins, Applied Thermal Engineering, 164 (2020), 114509
  11. Abdelmohimen, M. A., Algarni, S., Almutairi, K., Ahmed, G. M. S., Irshad, K., Irfan, S. A., Improving heat transfer of plate-fin heat sinks using Through Rod Configurations, ASME. J. Thermal Sci. Eng. Appl., (2020), doi:
  12. Wiriyasart, S., Naphon, P., Heat spreading of liquid jet impingement cooling of cold plate heat sink with different fin shapes, Case Studies in Thermal Engineering, 20 (2020), 100638
  13. Freegah, B., Hussain, A. A., Falih, A. H., Towsyfyan, H., CFD analysis of heat transfer enhancement in plate-fin heat sinks with fillet profile: Investigation of new designs, Thermal Science and Engineering Progress, 17 (2020), 100458
  14. Subramanian, S., Sridhar, K. S., Umesh, C. K., Experimental Investigation of Microchannel Heat Sink with Modified Hexagonal Fins, Journal of Applied Fluid Mechanics, 12 (2019), 3, pp. 647-655
  15. Sivapragasam, A., Duraisamy, S., Raman M., Experimental Investigation on Thermal Performance of Plate Fin Heat Sinks with Nano PCM, Thermal Science, 24 (2020), 1B, pp. 437-446.
  16. Arshad, A., Ali, H.M., Khushnood, S., Jabbal, M., Experimental investigation of PCM based round pin-fin heat sinks for thermal management of electronics: effect of pin-fin diameter, Int. J. Heat Mass Transfer, 117 (2018), pp. 861-872
  17. Pakrouh, R., Hosseini, M., Ranjbar, A., Bahrampoury, R., A numerical method for PCM-based pin fin heat sinks optimization, Energy Convers. Manage., 103 (2015), pp. 542-552
  18. Taghilou, M., Khavasi, E., Thermal behavior of a PCM filled heat sink: The contrast between ambient heat convection and heat thermal storage, Applied Thermal Engineering, 174 (2020), 115273
  19. Bar-Shalom D., Altitude effects on heat transfer processes in aircraft electronic equipment cooling, Master of Science in Aeronautics and Astronautics, Massachusetts Institute of Technology, 1988
  20. Elsayed, M. L., Mesalhy, O., Kizito, J. P., Leland, Q. H., Chow, L. C., Performance of a guided plate heat sink at high altitude, International Journal of Heat and Mass Transfer, 147 (2020), 118926
  21. Shaeri, M. R., Bonner, R., Heat transfer and pressure drop in laterally perforated-finned heat sinks across different flow regimes, Int. Communications in Heat and Mass Transfer, 87 (2017), pp. 220-227
  22. Li, B., Jeon, S., Byon, C., Investigation of natural convection heat transfer around a radial heat sink with a perforated ring, International Journal of Heat and Mass Transfer, 97 (2016), pp. 705-711
  23. Ozsipahia, M., Subasia, A., Gunesa, H., Sahin, B., Numerical investigation of hydraulic and thermal performance of a honeycomb heat sink, Int. Journal of Thermal Sciences, 134 (2018), pp. 500-506
  24. Awasarmol, U. V., Pise, A. T., An experimental investigation of natural convection heat transfer enhancement from perforated rectangular fins array at different Inclinations, Experimental Thermal and Fluid Science, 68 (2015), pp. 145-154.
  25. AIEssa, A. H., Maqableh, A. M., Ammourah, S., Enhancement of natural convection heat transfer from a fin by rectangular perforations with aspect ratio of two, Int. J. Phys. Sci., 4 (2009), pp. 540-547
  26. Huang, G.J., Wong, S.C., Lin, C.P., Enhancement of natural convection heat transfer from horizontal rectangular fin arrays with perforations in fin base, Int. J. Therm. Sci., 84 (2014), pp. 164-174
  27. Nair, D. V., Enhancement of Free Convection from Horizontal-Base Straight-Fin Heat Sink by Partial Shrouding, ASME. J. Thermal Sci. Eng. Appl., 12 (2020), 3, 031023
  28. Li, Y., Gong, L., Xu, M., Joshi, Y., Enhancing the performance of aluminum foam heat sinks through integrated pin fins, International Journal of Heat and Mass Transfer, 151 (2020), 119376

© 2022 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence