Authors

Evaluation of turbulence models for flow and heat transfer of drop-shaped tubes

DOI: 10.17586/1606-4313-2022-21-2-61-69
UDC 532.5.004.414.23:536.2.004.414.23

Evaluation of turbulence models for flow and heat transfer of drop-shaped tubes

Deeb Rawad, Kolotvin Aleksey V., Sidenkov D.V.

For citation: Deeb Rawad, Kolotvin A.V., Sidenkov D.V. Evaluation of turbulence models for flow and heat transfer of drop-shaped tubes. Journal of International Academy of Refrigeration. 2022. No 2. p. 61-69. DOI: 10.17586/1606-4313-2022-21-2-61-69

Abstract
Heat transfer and turbulent flow passing over a single tube and a bundle of drop-shaped tubes were simulated by Ansys Fluent package. Verification of two groups of turbulence models k-ε and k-ωwas carried out. The main parameters of the computational grid was determined allowing obtain the accepted calculations accuracy. Streamlines for the studied turbulence models were presented. The strengths and weaknesses of the studied models was described. Comparison of calculation results with experimental data showed that the use of the Standard k-ωturbulence model gives the best results when modeling heat transfer and hydrodynamics for the case of single a drop-shaped tube. However, the RNG k-εmodel with enhanced wall treatment function was considered more suitable in case of a drop-shaped tubes bundle.

Keywords: drop-shaped tube, heat transfer, hydrodynamics, swirling flow, turbulence models, Navier-Stokes, Reynolds stress models, numerical study, CFD.

All references

1. Deeb R. Comparative analysis of the latest improvements in heat transfer and hydrodynamic characteristics of smooth tubes in cross flow. Thermal processes in engineering. 2021. Vol. 13. Iss. 2. (in Russian)

2. Ota T., Hideya N., Yukiyasu T. Heat transfer and flow around an elliptic cylinder. International Journal of Heat and Mass Transfer.1984. Vol. 27. Pp. 1771–1779.

3. Lavasani A. M., Bayat H., Maarefdoost T. Experimental study of convective heat transfer from in-line cam shaped tube bank in crossflow. Applied thermal engineering. 2016. Vol. 65. Iss. 85. Pp. 85-93.

4. El Gharbi N., Kheiri A., Ganaoui M., Blanchard R. Numerical optimization of heat exchangers with circular and non-circular shapes. Case Studies in Thermal Engineering. 2015. Vol. 6. Pp. 194-203.

5. Теrekh A.М., Rudenko A.I., Zhukova Yu.V. Aerodynamic drag and flow visualization around single drop-shaped tubes. Journal of Engineering Physics and Thermophysics. 2013. Vol. 86. Iss. 2. (in Russian)

6. Deeb R. Experimental and numerical investigation of the effect of angle of attack on air flow characteristics around drop-shaped tube. Physics of Fluids. 2021. 33 6:065110.

7. Ahmed S.E.S., Ibrahiem E.Z., Mesalhy O.M., Abdelatief M.A. Heat transfer characteristics of staggered wing-shaped tubes bundle at different angles of attack. Int. J. Heat Mass Transfer.2014. 8 50:1091-1102.

8. Deeb R. The effect of angle of attack on heat transfer characteristics of drop-shaped tube. Int. J. Heat Mass Transfer. 2022. 183 122115.

9. Deeb R. Numerical analysis of the effect of longitudinal and transverse pitch ratio on the flow and heat transfer of staggered drop-shaped tubes bundle. Int. J. Heat Mass Transfer. 2022. 183 122123.

10. Deeb R., Sidenkov D.V., Salokhin V.I. Numerical Investigation of Thermal-Hydraulic Performance of Circular and Non-Circular Tubes in Cross-Flow. Herald of the Bauman Moscow State Technical University. Series Nat. Sci. 2021. 2. 95: 102-117.

11. Deeb Rawad, Sidenkov D.V. Numerical investigation of heat transfer and aerodynamics of single drop-shaped tubes. Vestnik Mezhdunarodnoi akademii kholoda. 2020. No 3. p. 91-99.(in Russian)

12. Deeb R. Numerical study of heat transfer characteristics and friction factor for staggered circular and drop-shaped double tubes bundles. Thermal processes in engineering. 2020. Vol. 12. Iss. 10. (in Russian)

13. Deeb R. Effect of angle of attack on heat transfer and hydrodynamic characteristics for staggered drop-shaped tubes bundle in cross-flow // Proceedings of the Russian higher school Academy of sciences, 2020. Vol. 3, Iss. 45. Pp. 21-36. (in Russian)

14. Deeb R.; Kolotvin A.V. Numerical investigation of heat transfer and hydrodynamics for in-line drop-shaped tubes bundle. Trudy Akademenergo. 2020. Vol. 60. Iss. 3. (in Russian)

15. Deeb R., Sidenkov D.V. Numerical simulation of the heat transfer of staggered drop-shaped tubes bundle. IOP Conf. Series: Journal of Physics. 2019.

16. Deeb R., Sidenkov D. V. Investigation of Flow Characteristics for Drop-shaped Tubes Bundle Using Ansys Package. V International Conference on Information Technologies in Engineering Education (Inforino). Moscow, Russia. 2020.

17. Deeb R., Sidenkov D.V., Yezhov E.V., Ponurovskaya V.V. Calculation of radiation heat transfer in staggered drop-shaped tubes bundle. IOP Conf. Series: Journal of Physics. 2019.

18. Deeb R., Sidenkov D.V. Numerical modelling of heat transfer and hydrodynamics for drop-shaped tubes bundle. IOP Conf. Series: Journal of Physics. 2020.

19. Roach P. Computational fluid dynamics. M.: Mir, 1980. p. 618. (in Russian)

20. Volkov K.N., Emelyanov V.N. Modeling of large eddies in the calculations of turbulent flows. M.: Fizmatlit, 2008. p. 364. (in Russian)

21. Belov I.A., Isaev S.A. Modeling of turbulent flows: Study guide. St. Petersburg: Publishing house of BSTU, 2001. 108 p. (in Russian)

22. Snegirev A.Yu. High performance computing in technical physics. Numerical modeling of turbulent flows: Study guide. St. Petersburg: Publishing House of the Polytechnic. un-ta, 2009. 143 p. (in Russian)

23. Yakhot V. et al. Renormalization Group Modeling and Turbulence Simulations. Near-Wall Turbulent Flows, Tempe, AZ, 1993.

ANSYS, Inc. ANSYS Fluent Reference Guide16.0. 2015.

Read the full article