Computational Study on the Effect of the Staggered Ribs on Heat Transfer Phenomena Between the Horizontal Plates

Year 2021, , 7 - 17, 31.03.2021

İlker Göktepeli , Ulaş Atmaca

https://doi.org/10.17350/HJSE19030000207

Cited By: 3

Abstract

In terms of multifarious technical applications, various kinds of passive methods are preferred to the active techniques when it comes to increase the amount of convection heat transfer via less energy consumption. As a vortex generator within the scope of the passive method, rib is usually employed to induce the heat transfer enhancement. In this study, the rectangular cross-sectional ribs have been placed to increase the amount of the heat transfer for the staggered arrangement between the horizontal parallel plates. Numerical simulations have been conducted by using k-ω SST turbulence model at Re = 10000. The rib effect has been comparatively investigated in case of thermal and hydraulic performance presented via the numerical results. Time-averaged results for temperature, pressure, streamwise velocity component and streamline patterns have been presented in terms of contour graphics. Furthermore, heat transfer enhancement by using the ribs has been given depending on the increment ratio of Nusselt numbers. Including friction losses due to the ribs mounted on the plates, the values of thermal performance factor for all ducts have been calculated. According to these results for heat transfer augmentation at Re = 10000, h' = 0.1 with S' = 0.5 having η = 1.049 and h' = 0.1 with S' = 0.75 having η = 1.019 have been recommended rather than the smooth duct.

Keywords

Heat transfer enhancement, k-ω SST, Ribbed plate, Staggered arrangement, Thermal performance

References

• Abdullahi, A. & Shams, M. 2015. Optimization Of Shape And Angle Of Attack Of Winglet Vortex Generator In A Rectangular Channel For Heat Transfer Enhancement. Applied Thermal Engineering, 81, 376-387.
• Ahmed, M., Yusoff, M. & Shuaib, N. 2013. Effects Of Geometrical Parameters On The Flow And Heat Transfer Characteristics In Trapezoidal-Corrugated Channel Using Nanofluid. International Communications In Heat And Mass Transfer, 42, 69-74.
• Alfarawi, S., Abdel-Moneim, S. & Bodalal, A. 2017. Experimental Investigations Of Heat Transfer Enhancement From Rectangular Duct Roughened By Hybrid Ribs. International Journal Of Thermal Sciences, 118, 123-138.
• Anonymous 2009. Ansys-Fluent 12.0 Theory Guide. Ansys Inc.
• Aslan, E., Taymaz, I. & Islamoglu, Y. 2016. Finite Volume Simulation For Convective Heat Transfer In Wavy Channels. Heat And Mass Transfer, 52, 483-497.
• Cengel, Y. & Cimbala, J. M. 2006. Fluid Mechanics Fundamentals And Applications. International Edition, Mcgraw Hill Publication, 185201.
• Desrues, T., Marty, P. & Fourmigué, J. 2012. Numerical Prediction Of Heat Transfer And Pressure Drop In Three-Dimensional Channels With Alternated Opposed Ribs. Applied Thermal Engineering, 45, 52-63.
• Goktepeli, I., Atmaca, U. & Cakan, A. 2020. Investigation Of Heat Transfer Augmentation Between The Ribbed Plates Via Taguchi Approach And Computational Fluid Dynamics. Journal Of Thermal Science, 29, 647-666.
• Goktepeli, I., Atmaca, U. & Yagmur, S. 2021. Visualization Of Flow Characteristics Between The Ribbed Plates Via Particle Image Velocimetry. Thermal Science, 25, 171-179.
• Kaewkohkiat, Y., Promvonge, P. & Eiamsa-Ard, S. 2017. Turbulent Periodic Flow And Heat Transfer In A Rectangular Channel With Detached V-Baffles. Journal Of Engineering Thermophysics, 26, 542-552.
• Kashyap, U., Das, K. & Debnath, B. K. 2018. Effect Of Surface Modification Of A Rectangular Vortex Generator On Heat Transfer Rate From A Surface To Fluid. International Journal Of Thermal Sciences, 127, 61-78.
• Kilicaslan, I. & Sarac, H. I. 1998. Enhancement Of Heat Transfer In Compact Heat Exchanger By Different Type Of Rib With Holographic Interferometry. Experimental Thermal And Fluid Science, 17, 339-346.
• Liu, H. & Wang, J. 2011. Numerical Investigation On Synthetical Performances Of Fluid Flow And Heat Transfer Of Semiattached Rib-Channels. International Journal Of Heat And Mass Transfer, 54, 575-583.
• Manca, O., Nardini, S. & Ricci, D. 2011. Numerical Analysis Of Water Forced Convection In Channels With Differently Shaped Transverse Ribs. Journal Of Applied Mathematics, 2011.
• Marocco, L. & Franco, A. 2017. Direct Numerical Simulation And Rans Comparison Of Turbulent Convective Heat Transfer In A Staggered Ribbed Channel With High Blockage. Journal Of Heat Transfer, 139, 021701.
• Matsubara, K., Ohta, H. & Miura, T. 2016. Entrance Region Heat Transfer In A Channel With A Ribbed Wall. Journal Of Heat Transfer, 138, 122001.
• Mayle, R. E. 1991. Pressure Loss And Heat Transfer In Channels Roughened On Two Opposed Walls. Journal Of Turbomachinery, 113, 60-66.
• Moon, M.-A., Park, M.-J. & Kim, K.-Y. 2014. Evaluation Of Heat Transfer Performances Of Various Rib Shapes. International Journal Of Heat And Mass Transfer, 71, 275-284.
• Patankar, S., Liu, C. & Sparrow, E. 1977. Fully Developed Flow And Heat Transfer In Ducts Having Streamwise-Periodic Variations Of Cross-Sectional Area. Journal Of Heat Transfer, 99, 180-186.
• Promvonge, P. & Thianpong, C. 2008. Thermal Performance Assessment Of Turbulent Channel Flows Over Different Shaped Ribs. International Communications In Heat And Mass Transfer, 35, 1327-1334.
• Skullong, S., Thianpong, C. & Promvonge, P. 2015. Effects Of Rib Size And Arrangement On Forced Convective Heat Transfer In A Solar Air Heater Channel. Heat And Mass Transfer, 51, 1475-1485.
• Sripattanapipat, S. & Promvonge, P. 2009. Numerical Analysis Of Laminar Heat Transfer In A Channel With Diamond-Shaped Baffles. International Communications In Heat And Mass Transfer, 36, 32-38.
• Sundén, B. 2011. Convective Heat Transfer And Fluid Flow Physics In Some Ribbed Ducts Using Liquid Crystal Thermography And Piv Measuring Techniques. Heat And Mass Transfer, 47, 899-910.
• Tiggelbeck, S., Mitra, N. K. & Fiebig, M. 1993. Experimental Investigations Of Heat Transfer Enhancement And Flow Losses In A Channel With Double Rows Of Longitudinal Vortex Generators. International Journal Of Heat And Mass Transfer, 36, 2327-2337.
• Vanaki, S. M. & Mohammed, H. 2015. Numerical Study Of Nanofluid Forced Convection Flow In Channels Using Different Shaped Transverse Ribs. International Communications In Heat And Mass Transfer, 67, 176-188.
• Webb, B. & Ramadhyani, S. 1985. Conjugate Heat Transfer In A Channel With Staggered Ribs. International Journal Of Heat And Mass Transfer, 28, 1679-1687.
• Wongcharee, K., Changcharoen, W. & Eiamsa-Ard, S. 2011. Numerical Investigation Of Flow Friction And Heat Transfer In A Channel With Various Shaped Ribs Mounted On Two Opposite Ribbed Walls. International Journal Of Chemical Reactor Engineering, 9.
• Xie, G., Li, S., Zhang, W. & Sunden, B. 2013. Computational Fluid Dynamics Modeling Flow Field And Side-Wall Heat Transfer In Rectangular Rib-Roughened Passages. Journal Of Energy Resources Technology, 135, 042001.
• Yang, W., Xue, S., He, Y. & Li, W. 2017. Experimental Study On The Heat Transfer Characteristics Of High Blockage Ribs Channel. Experimental Thermal And Fluid Science, 83, 248-259.
• Yang, Y.-T. & Chen, P.-J. 2015. Numerical Optimization Of Turbulent Flow And Heat Transfer Characteristics In A Ribbed Channel. Heat Transfer Engineering, 36, 290-302.
• Yemenici, O. & Umur, H. 2016. Experimental Aspects Of Heat Transfer Enhancement Over Various Flow Surfaces. Heat Transfer Engineering, 37, 435-442.