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Effects of tangential and radial velocity on fluid flow and heat transfer for flow through a pipe with twisted tape insert—laminar flow

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Abstract

The present study reports the numerical analysis of fluid flow and heat transfer in a pipe with full length twisted tape insert. The investigation is carried out for five different twist ratios of 4, 5, 6, 8 and 10 at 100 ≤ Re ≤ 1000. The velocity field in terms of streamwise, tangential and radial velocity and temperature field are studied as a function of Reynolds number and twist ratio. The variation of friction factor and Nusselt number with Reynolds number for different twist ratios is also presented. The heat transfer enhancement due to insertion of twisted tape mainly comes from the tangential and radial components of velocities, which are regarded as secondary fluid motion. It is evident from the results that with increase in Reynolds number the axial convection increases. However, with the decrease in the twist ratio, the tangential and radial convection increases, leading to increased heat transfer. The secondary flow affects the thermal boundary layer inside the tube and increases the cross-flow mixing, which increases the heat transfer. The correlations for prediction of friction factor and Nusselt number based on the numerical data are also proposed.

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Abbreviations

D :

diameter of the tube (m)

f :

friction factor

H :

twist pitch length (m)

h :

convective heat transfer coefficient (\(\hbox {W}/(\hbox {m}^{2}\hbox {K})\))

k :

thermal conductivity of the material (\(\hbox {W}/(\hbox {m}\hbox {K})\))

L :

tube axial length (m)

Nu:

Nusselt number

p :

static pressure (\(\hbox {N}/\hbox {m}^{2}\))

Pr:

Prandtl number

q :

heat flux (\(\hbox {W}/\hbox {m}^{2}\))

r :

radial distance from the centre of the tube

Re:

Reynolds number

Sc:

circumferential distance on the tube measured clockwise from the tube tape contact point

T :

temperature (K)

u, v, w :

components of velocity vector in Cartesian coordinates (m/s)

V :

velocity (m/s)

\(V_r, V_{\theta }, V_z \) :

components of velocity vector in cylindrical coordinates (m/s)

x, y, z :

components of Cartesian coordinates (m)

\(\delta \) :

thickness of the tape (m)

\(\theta \) :

temperature difference \(T - T_b\) (K)

\(\theta _0\) :

temperature difference \(T_w - T_b\) (K)

\(\mu \) :

dynamic viscosity (\(\hbox {NS/m}^{2}\))

\(\rho \) :

density (\(\hbox {kg/m}^{3}\))

\(\phi \) :

angle measured anticlockwise from the tape surface in the flow direction

w :

wall side

b :

bulk fluid value

References

  1. Smithberg E and Landis F 1964 Friction and forced convection heat-transfer characteristics in tubes with twisted tape swirl generators. J. Heat Transf. 86(1): 39

    Article  Google Scholar 

  2. Hong S W and Bergles A E 1976 Augmentation of laminar flow heat transfer in tubes by means of twisted-tape inserts. J. Heat Transf. 98(2): 251

    Article  Google Scholar 

  3. Date A W 1974 Prediction of fully-developed flow in a tube containing a twisted-tape. Int. J. Heat Mass Transf. 17(8): 845–859

    Article  Google Scholar 

  4. Manglik R M and Bergles A E 1993 Heat transfer and pressure drop correlations for twisted-tape inserts in isothermal tubes: part i—laminar flows. J. Heat Transf. 115(4): 881

    Article  Google Scholar 

  5. Agarwal S K and Raja Rao M 1996 Heat transfer augmentation for the flow of a viscous liquid in circular tubes using twisted tape inserts. Int. J. Heat Mass Transf. 39(17): 3547–3557

    Article  Google Scholar 

  6. Wang L and Sundén B 2002 Performance comparison of some tube inserts. Int. J. Heat Mass Transf. 29(1): 45–56

    Article  Google Scholar 

  7. Chang S W, Yu K W and Lu M H 2005 Heat transfers in tubes fitted with single, twin, and triple twisted tapes. Exp. Heat Transf. 18(4): 279–294

    Article  Google Scholar 

  8. Klepper O H 1972 Heat transfer performance of short twisted tapes. Technical report, Office of Scientific and Technical Information (OSTI)

  9. Saha S K , Dutta A and Dhal S K 2001 Friction and heat transfer characteristics of laminar swirl flow through a circular tube fitted with regularly spaced twisted-tape elements. Int. J. Heat Mass Transf. 44(22): 4211–4223

    Article  MATH  Google Scholar 

  10. Saha S K, Gaitonde U N and Date A W 1990 Heat transfer and pressure drop characteristics of turbulent flow in a circular tube fitted with regularly spaced twisted-tape elements. Exp. Therm. Fluid Sci. 3(6): 632–640

    Article  Google Scholar 

  11. Saha S K and Dutta A 2001 Thermohydraulic study of laminar swirl flow through a circular tube fitted with twisted tapes. J. Heat Transf. 123(3): 417

    Article  Google Scholar 

  12. Eiamsa-ard S, Thianpong C and Promvonge P 2006 Experimental investigation of heat transfer and flow friction in a circular tube fitted with regularly spaced twisted tape elements. Int. Commun. Heat Mass Transf. 33(10): 1225–1233

    Article  Google Scholar 

  13. Saha S K and Date A W 1990 Numerical prediction of laminar flow and heat transfer characteristics in a tube fitted with regularly spaced twisted-tape elements. Int. J. Heat Fluid Flow 11(4): 346–354

    Article  Google Scholar 

  14. Chiu Y W and Jang J Y 2009 3D numerical and experimental analysis for thermal–hydraulic characteristics of air flow inside a circular tube with different tube inserts. Appl. Therm. Eng. 29(2–3): 250–258

    Article  Google Scholar 

  15. Eiamsa-ard S, Wongcharee K and Sripattanapipat S 2009 3-D numerical simulation of swirling flow and convective heat transfer in a circular tube induced by means of loose-fit twisted tapes. Int. J. Heat Mass Transf. 36(9): 947–955

    Article  Google Scholar 

  16. Rahimi M, Shabanian S R and Alsairafi A A 2009 Experimental and CFD studies on heat transfer and friction factor characteristics of a tube equipped with modified twisted tape inserts. Chem. Eng. Process. Process Intensif. 48(3): 762–770

    Article  Google Scholar 

  17. Cui Y Z and Tian M C 2010 Three-dimensional numerical simulation of thermal–hydraulic performance of a circular tube with edgefold-twisted-tape inserts. J. Hydrodyn. Ser. B 22(5): 662–670

    Article  Google Scholar 

  18. Guo J, Fan A, Zhang X and Liu W 2011 A numerical study on heat transfer and friction factor characteristics of laminar flow in a circular tube fitted with centre-cleared twisted tape. Int. J. Therm. Sci. 50(7): 1263–1270

    Article  Google Scholar 

  19. Lin Z M and Wang L B 2009 Convective heat transfer enhancement in a circular tube using twisted tape. J. Heat Transf. 131(8): 081901

    Article  Google Scholar 

  20. Ray S and Date A W 2001 Laminar flow and heat transfer through square duct with twisted tape insert. Int. J. Heat Fluid Flow 22(4): 460–472

    Article  Google Scholar 

  21. Hong S W 1974 Laminar flow heat transfer in ordinary and augmented tube. PhD thesis, Iowa State University, Ann Arbor

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Authors and Affiliations

  1. Department of Mechanical Engineering, College of Engineering Pune (Affiliated to SPPU, Pune), Pune, 411005, India

    Parag Chaware & C M Sewatkar

  2. Department of Mechanical Engineering, Cummins College of Engineering for Women (Affiliated to SPPU, Pune), Pune, 411052, India

    Parag Chaware

Authors
  1. Parag Chaware
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  2. C M Sewatkar
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Correspondence to C M Sewatkar.

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Chaware, P., Sewatkar, C.M. Effects of tangential and radial velocity on fluid flow and heat transfer for flow through a pipe with twisted tape insert—laminar flow. Sādhanā 43, 150 (2018). https://doi.org/10.1007/s12046-018-0893-z

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  • DOI: https://doi.org/10.1007/s12046-018-0893-z

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