Русская версия English version

Experimental study of oscillating flow in tube bundle

A.I. Khaibullina, A.R. Khayrullin, V.R. Ilyin

Vestnik IGEU, 2023 issue 6, pp. 29—37

Download PDF

Abstract in English: 

Background. Oscillating reciprocating flows are found in a variety of engineering applications. The mechanisms of oscillating flows have not been sufficiently studied. Oscillating flows can be created artificially to increase heat transfer equipment by intensifying heat transfer. Thus, this paper studies the flow and heat transfer characteristics of a tube bundle under the influence of oscillating flow.

Materials and methods. The assessment of heat transfer and the hydrodynamic flow pattern in a tube bundle during flow oscillations is carried out on the basis of experimental studies. Flow oscillations have been created by a pneumatic system that drove a pulsator. The time characteristic of the pressure drop of the tube bundle has been recorded using an oscilloscope and pressure drop sensors. To assess the dynamics of flow velocity, the high-speed shooting method is used. The heat exchange of a tube bundle has been determined by the electrical power expended to maintain a constant temperature on the tube side of the bundle.

Results. For the first time, heat transfer and the hydrodynamic flow pattern with asymmetrical flow oscillations in an inline tube bundle are studied experimentally. It is shown that the shape of oscillations of flow velocity and pressure drop depend on frequency. It has been found that with increasing frequency there is an increase in the values of flow velocity and pressure drop. It has been determined that for certain moments of time, the flow velocity and pressure drop during asymmetrical oscillations exceed symmetrical ones. It has been established that the heat transfer rate of a bundle increases by 1,7 times with an increase in frequency. It has been shown that asymmetrical oscillations are more effective in intensifying heat transfer than symmetrical ones by an average of 1,1 times.

Conclusions. Analysis of the results obtained has showed the possibility of intensifying heat transfer in a tube bundle using oscillating flows. Thus, oscillating flows can be used to increase the efficiency of heat exchange equipment. The results obtained on the hydrodynamic flow pattern can be used in mathematical modeling of oscillating flows, which are necessary to expand the operating parameters of the study and determine the most effective ones.

References in English: 

1.  Weaver, D.S. A review of cross-flow induced vibrations in heat exchanger tube array. J. Fluids Struct., 1988, vol. 2, pp. 73–93.

2. Zhang, N.,  Li, D.,  Gao, B., Ni, D., Li, Z. Unsteady Pressure Pulsations in Pumps – A Review. Energies, 2022, vol. 16, no. 1, p. 150.

3.  Ibrahim, K.A., Luk, P., Luo, Z. Cooling of Concentrated Photovoltaic Cells – A Review and the Perspective of Pulsating Flow Cooling. Energies, 2023, vol. 16, no. 6, p. 2842.

4.  Zukauskas, A. Heat Transfer from Tubes in Crossflow. Adv. Heat Transf., 1972, vol. 18, pp. 87–159.

5.  Nguyen, Q.D., Lei, C. A PIV study of blockage ratio effects on flow over a confined circular cylinder at low Reynolds numbers. Exp Fluids, 2023, vol. 64, no. 1, p. 10.

6. Hemmat Esfe, M., Bahiraei, M., Torabi, A., Valadkhani, M. A critical review on pulsating flow in conventional fluids and nanofluids: Thermo-hydraulic characteristics. International Communications in Heat and Mass Transfer, 2021, vol. 120, p. 104859.

7.  Ye, Q., Zhang, Y., Wei, J. A comprehensive review of pulsating flow on heat transfer enhancement. Applied Thermal Engineering, 2021, vol. 196, p. 117275.

8.  Qamar, A., Seda, R., Bull, J.L. Pulsatile flow past an oscillating cylinder. Physics of Fluids, 2011, vol. 23, no. 4, p. 041903.

9.  Andraka, C.E., Diller, T.E. Heat-Transfer Distribution Around a Cylinder in Pulsating Crossflow. Journal of Engineering for Gas Turbines and Power, 1985, vol. 107, no. 4, pp. 976–982.

10. Saxena, A., Ng, E.Y.K. Steady and Pulsating Flow Past a Heated Rectangular Cylinder(s) in a Channel. Journal of Thermophysics and Heat Transfer, 2018, vol. 32, no. 2, pp. 401–413.

11. Martin, E., Velazquez, A., Valeije, A. Heat transfer downstream of a 3D confined square cylinder under flow pulsation. Numerical Heat Transfer, Part A: Applications, 2018, vol. 74, no. 12, pp. 1747–1769.

12. Molochnikov, V.M., Mikheev, N.I., Mikheev, A.N., Paereliy, A.A. Heat transfer from a cylinder in pulsating cross-flow. Thermophys. Aeromech, 2017, vol. 24, no. 4, pp. 569–575.

13. Srivastava, A., Dhiman, A. Pulsatile flow and heat transfer of shear-thinning power-law fluids over a confined semi-circular cylinder. Eur. Phys. J. Plus, 2019, vol. 134, no. 4, p. 144.

14. Gau, C., Wu, S.X., Su, H.S. Synchronization of Vortex Shedding and Heat Transfer Enhancement Over a Heated Cylinder Oscillating With Small Amplitude in Streamwise Direction. Journal of Heat Transfer, 2001, vol. 123, no. 6, pp. 1139–1148.

15. Iwai, H., Mambo, T., Nakabe, K., Suzuki, K. Laminar convective heat transfer from a circular cylinder exposed to a low frequency zero-mean velocity oscillating flow. International Journal of Heat and Mass Transfer, 2004, vol. 47, no. 21, pp. 4659–4672.

16. Wu, Z., You, Sh., Zhang, H., Zheng, W. Experimental investigation on heat transfer characteristics of staggered tube bundle heat exchanger immersed in oscillating flow. International Journal of Heat and Mass Transfer, 2020, vol. 148, p. 119125.

17. Molochnikov, V.M., Mikheev, A.N., Aslaev, A.K., Goltsman, A.E., Paereliy, A.A. Heat transfer of a tube bundle in a pulsating flow. Thermophys. Aeromech, 2019, vol. 26, no. 4, pp. 547–559.

18. Molochnikov, V.M., Mikheev, A.N., Aslaev, A.K., Goltsman, A.E., Paereliy, A.A. Flow structure between the tubes and heat transfer of a tube bundle in pulsating flow. J. Phys.: Conf. Ser., 2018, vol. 1105, p. 012024.

19. Mulcahey, T.I., Pathak, M.G., Ghiaasiaan, S.M. The effect of flow pulsation on drag and heat transfer in an array of heated square cylinders. International Journal of Thermal Sciences, 2013, vol. 64, pp. 105–120.

20. Dellali, E. Pressure drop analysis of oscillating flows through a miniature porous regenerator under isothermal and nonisothermal conditions. Experimental Thermal and Fluid Science, 2019, vol. 103, pp. 394–405.

21. Leong, K.C., Jin, L.W. An experimental study of heat transfer in oscillating flow through a channel filled with an aluminum foam. International Journal of Heat and Mass Transfer, 2005, vol. 48, no. 2, pp. 243–253.

22. Leong, K.C., Jin, L.W. Effect of oscillatory frequency on heat transfer in metal foam heat sinks of various pore densities. International Journal of Heat and Mass Transfer, 2006, vol. 49, no. 3–4, pp. 671–681.

23. Ilyin, V.K., Haibullina, A.I., Hayrullin, A.R., Sabitov, L.S. Thermal and hydraulic efficiency of the corridor tube bundle in conditions of pulsating flow of fluid. IOP Conf. Ser.: Mater. Sci. Eng., 2017, vol. 240, p. 012025.

24. Khaybullina, A.I., Khayrullin, A.R. Chislennoe issledovanie teploobmena v koridornom puchke trub v usloviyakh pul'siruyushchego potoka zhidkosti [A numerical study of heat transfer in the in-line tube bundle under pulsating fluid flow conditions]. Vestnik IGEU, 2019, issue 4, pp. 12–21.

25. Moffat, R.J. Describing the uncertainties in experimental results. Experimental Thermal and Fluid Science, 1988, vol. 1, no. 1, p. 3–17.

26. Bağcı​, Ö.,  Arbak, A., De Paepe, M., Dukhan, N. Investigation of low-frequency-oscillating water flow in metal foam with 10 pores per inch. Heat Mass Transfer, 2018, vol. 54, no. 8, pp. 2343–2349.

27. Leong, K.C., Jin, L.W. Characteristics of oscillating flow through a channel filled with open-cell metal foam. International Journal of Heat and Fluid Flow, 2006, vol. 27, no. 1, pp. 144–153.

28. Hayrullin, A., Haibullina, A., Sinyavin, A., Balzamov, D., Ilyin, V., Khairullina, L., Bronskaya, V. Heat Transfer in 3D Laguerre–Voronoi Open-Cell Foams under Pulsating Flow. Energies, 2022, vol. 15, no. 22, p. 8660.

Key words in Russian: 
осцилляции потока, перепад давления, интенсификация теплоотдачи, трубный пучок, несимметричные осцилляции, пульсации потока
Key words in English: 
oscillation flow, pressure drop, heat transfer enhancement, tube bundle, asymmetrical oscillation, flow pulsation
The DOI index: 
10.17588/2072-2672.2023.6.029-037
Downloads count: 
16