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Computational study on effects of rib height and thickness on heat transfer enhancement in a rib roughened square channel

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Abstract

A computational study was carried out for the heat transfer augmentation in a three-dimensional square channel fitted with different types of ribs. The standard k–ε model and its two variants (RNG and realizable) were used for turbulence modeling. The predictions were compared with available experimental and computational results. Three rib configurations were used in the present study: 90° continuous attached ribs, 60° V-shaped broken attached thick and thin ribs. It was observed that the maximum heat transfer occurs at the normalized rib spacing (p/e) = 10 in the case of 90° attached ribs. The effects of the blockage ratio and rib thickness were investigated for 60° V-shaped broken ribs with Re = 10,000–30,000 and p/e = 10. It was observed that the average Nusselt number decreases with an increase in the Reynolds number for almost all configurations studied in the present study. For the 60° V-shaped broken ribs, increasing the blockage ratio had an adverse effect on the heat transfer. It was also observed that thin ribs perform better than thick ribs.

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References

  1. Sriharsha V, Prabhu S V and Vedula R P 2009 Influence of rib height on local heat transfer distribution and pressure drop in a square channel with 90° continuous and 60° V-broken ribs. Appl. Therm. Eng. 29: 2444–2459

    Article  Google Scholar 

  2. Webb R L, Eckert E R G and Goldstein R J 1971 Heat transfer and friction in tubes with repeated-rib roughness. Int. J. Heat Mass Transfer 14: 601–617

    Article  Google Scholar 

  3. Han J C, Glicksman L R and Rohsenow W M 1978 An investigation of heat transfer and friction for rib roughened surfaces. Int. J. Heat Mass Transfer 21: 1143–1156

    Article  Google Scholar 

  4. Han J C, Zhang Y M and Lee C P 1991 Augmented heat transfer in square channels with parallel, crossed and V-shaped angled ribs. Trans. ASME 113: 590–596

    Article  Google Scholar 

  5. Han J C and Zhang Y M 1992 High performance heat transfer ducts with parallel broken and V-shaped broken ribs. Int. J. Heat Mass Transfer 35: 513–523

    Article  Google Scholar 

  6. Braun H, Neumann H and Mitra N K 1999 Experimental and Numerical investigation of turbulent heat transfer in a channel with a periodically arranged rib roughness elements. Exp. Therm. Fluid Sci. 19: 67–76

    Article  Google Scholar 

  7. Bonhoff B, Parneix S, Leusch J et al 1999 Experimental and numerical study of developed flow and heat transfer in coolant channels with 45° ribs. Int. J. Heat Fluid Flow 20: 311–319

    Article  Google Scholar 

  8. Gao X and Sunden B 2001 Heat transfer and pressure drop measurements in rib roughened rectangular channel. Exp. Therm. Fluid Sci. 24: 25–34

    Article  Google Scholar 

  9. Chandra P R, Alexander C R and Han J C 2003 Heat transfer and friction behaviors in rectangular channels with varying number of ribbed walls. Int. J. Heat Mass Transfer 46: 481–495

    Article  Google Scholar 

  10. Kim H M and Kim K Y 2004 Design optimization of rib roughened channel to enhance turbulent heat transfer. Int. J. Heat Mass Transfer 47: 5159–5168

    Article  MATH  Google Scholar 

  11. Tanda G 2004 Heat transfer in rectangular channels with transverses and V-shaped broken ribs. Int. J. Heat Mass Transfer 47: 229–243

    Article  Google Scholar 

  12. Gao X and Sunden B 2004 PIV measurements of the flow field in rectangular ducts with 60 degree parallel, crossed and V-shaped ribs. Exp. Therm. Fluid Sci. 28: 639–653

    Article  Google Scholar 

  13. Onbasioglu S U and Onbasioglu H 2004 On enhancement of heat transfer with ribs. Appl. Therm. Eng. 24: 43–57

    Article  Google Scholar 

  14. Sewall E A, Tafti D K, Graham A B et al 2006 Experimental validation of Large Eddy Simulation of flow and heat transfer in a stationary ribbed duct. Int. J. Heat Fluid Flow 27: 243–258

    Article  Google Scholar 

  15. Vijiapurapu S and Cui J 2007 Simulation of turbulent flow in a ribbed pipe using Large Eddy Simulation. Numer. Heat Transfer A 51: 1137–1165

    Article  Google Scholar 

  16. Gupta A, Sriharsha V, Prabhu S V et al 2008 Local heat transfer distribution in a square channel with 90 degree continuous, 90° saw tooth profiled and 60° broken ribs. Exp. Therm. Fluid Sci. 32: 997–1000

    Article  Google Scholar 

  17. Eiamsa-ard S and Promvonge P 2008 Numerical study of heat transfer of turbulent channel flow over periodic grooves. Int. Comm. Heat Mass Transfer 35: 844–852

    Article  Google Scholar 

  18. Tanda G 2011 Effects of rib spacing on heat transfer and friction in a rectangular channel with 45 degree angled rib turbulators on one/two walls. Int. J. Heat Mass Transfer 54: 1081–1090

    Article  Google Scholar 

  19. Peng W, Jiang P X, Wang Y P et al 2011 Experimental and numerical investigations of convection heat transfer in channels with different types of ribs. Appl. Therm. Eng. 31: 2702–2708

    Article  Google Scholar 

  20. Promvonge P, Changcharoen W, Kwankaomeng S et al 2011 Numerical heat transfer study of turbulent square duct flow though inline V-shaped discrete ribs. Int. Comm. Heat Mass Transfer 38: 1392–1399

    Article  Google Scholar 

  21. Smulsky Ya I, Terekhov V I and Yarygina N I 2012 Heat transfer in turbulent separated flow behind a rib on the surface of square channel at different orientation angles relative to flow direction. Int. J. Heat Mass Transfer 55: 726–733

    Article  Google Scholar 

  22. Tang X and Zhu D 2013 Flow structure and heat transfer in a narrow rectangular channel with different discrete rib arrays. Chem. Eng. Process. 69: 1–14

    Article  Google Scholar 

  23. Vijiapurapu S and Cui J 2010 Performance of turbulence models for flows through pipes. Appl. Math. Model. 34: 1458–1466

    Article  MathSciNet  MATH  Google Scholar 

  24. Dewan A 2011 Tackling turbulent flows in engineering. Germany: Springer, p. 124

    Book  MATH  Google Scholar 

  25. Launder B E and Spalding D B 1972 In: Lectures in mathematical models of turbulence. London England: Academic Press

    MATH  Google Scholar 

  26. Pathak M, Dewan A and Das A K 2006 Computational prediction of a slightly heated turbulent rectangular jet discharged into a narrow channel crossflow using two different turbulence model. Int. J. Heat Mass Transfer 49: 3914–3928

    Article  MATH  Google Scholar 

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Authors and Affiliations

  1. Department of Applied Mechanics, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India

    ANUJ K SHUKLA & ANUPAM DEWAN

Authors
  1. ANUJ K SHUKLA
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  2. ANUPAM DEWAN
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Correspondence to ANUPAM DEWAN.

Appendix

Appendix

Notation

A :

area (m2)

C :

model constant

c p :

specific heat at constant pressure

d :

hydraulic diameter (mm)

e :

rib height (mm)

e/d :

blockage ratio

h :

heat transfer coefficient (W/m2 K)

k :

turbulent kinetic energy (m2/s2)

k a :

thermal conductivity of air (W/m-K)

Nu :

local Nusselt number (hd/k)

Nu/Nu 0 :

normalized local Nusselt number

Nu 0 :

Nusselt number obtained by Dittus–Boelter correlation

Nu av :

area average Nusselt number

Nu av /Nu 0 :

normalized avg. Nusselt number

p :

rib pitch (mm)

P :

mean pressure (Pa)

p/e :

normalized rib spacing

Pr :

Prandtl number

Re :

Reynolds Number

s :

rib thickness (mm)

s/d :

normalized rib thickness

U :

mean velocity

Φ:

scalar quantity

ε :

rate of dissipation of turbulent

μ :

dynamic viscosity (kg/s-m)

μ t :

eddy viscosity

Subscripts

b :

bulk

i,j,k:

tensor notation

t :

turbulent quantities

w :

wall

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SHUKLA, A.K., DEWAN, A. Computational study on effects of rib height and thickness on heat transfer enhancement in a rib roughened square channel. Sādhanā 41, 667–678 (2016). https://doi.org/10.1007/s12046-016-0501-z

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  • DOI: https://doi.org/10.1007/s12046-016-0501-z

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