An analysis of thermo-magnetic convection of paramagnetic fluid in rectangular enclosure

• Autorzy: Kraszewska A. , Pyrda Ł.
• Języki publikacji: EN

Abstrakty

EN

The thermo-magnetic convection of paramagnetic fluid in a strong magnetic field is studied. The fluid is aqueous solution of glycerol with gadolinium nitrate hexahydrate. Experimental enclosure – rectangular vessel with aspect ratio equal to 2 – was heated from the bottom, and cooled from the top. Temperature difference between top and bottom walls was kept constant ΔT=5K. The magnetic induction was increased stepwise from 1 to 10 [T]. On the basis of temperature measurements, analysis of heat transfer and fluid flow were performed, showing that magnetic field strongly enhance heat transfer (over 300%) and that aspect ratio of the enclosure has a great influence on heat exchange in the system.

Słowa kluczowe

EN

thermo-magnetic convection; strong magnetic field; experimental analysis; paramagnetic fluid

PL

konwekcja termo-magnetyczna; silne pole magnetyczne; analiza eksperymentalna; ciecz paramagnetyczna

• Wydawca: Centrum Badań i Innowacji Pro-Akademia ; Ukrainian Academy of Sciences - Research and Development Centre for Industrial Problems of Development
• Czasopismo: Acta Innovations
• Rocznik: 2016
• Tom: no. 18
• Strony: 5--13
• Opis fizyczny: Bibliogr. 17 poz., wykr.

Twórcy

autor

Kraszewska A.

• AGH University of Science and Technology, Al. Mickiewicza 30, 30-059, Kraków

autor

Pyrda Ł.

• AGH University of Science and Technology, Al. Mickiewicza 30, 30-059, Kraków

Bibliografia

• [1] D. Braithwaite, E. Beaugnon, R. Tournier, Magnetically controlled convection in a paramagnetic fluid, Nature, vol. 354, no. 6349 (1991) 134–136
• [2] T. Tagawa, R. Shigemitsu, and H. Ozoe, Magnetizing force modeled and numerically solved for natural convection of air in a cubic enclosure : effect of the direction of the magnetic field, Int. J. Heat Mass Transf., 45 (2002) 267–277
• [3] T. P. Bednarz, C. Lei, J. C. Patterson, H. Ozoe, Effects of a transverse, horizontal magnetic field on natural convection of a paramagnetic fluid in a cube, Int. J. Therm. Sci., vol. 48, no. 1 (2009)26–33
• [4] E. Fornalik, P. Filar, T. Tagawa, H. Ozoe, J. S. Szmyd, Effect of a magnetic field on the convection of paramagnetic fluid in unstable and stable thermosyphon-like configurations, Int. J. Heat Mass Transf., vol. 49, no. 15–16 (2006) 2642–2651
• [5] L. Pyrda, S. Kenjeres, E. Fornalik-Wajs, J. S. Szmyd, An analysis of unsteady thermal convection of paramagnetic fluid in cubical enclosure under strong magnetic field gradient, J. Phys. Conf. Ser., vol. 395 (2012) 012125
• [6] A. Roszko, E. Fornalik-Wajs, J. Donizak, J. Wajs, A. Kraszewska, L. Pleskacz, S. Kenjeres, Magnetothermal convection of low concentration nanofluids, MATEC Web Conf., vol. 18 (2014) 03006
• [7] C. E. Dijkstra, O. J. Larkin, P. Anthony, M. R. Davey, L. Eaves, C. E. D. Rees, R. J. A. Hill, Diamagnetic levitation enhances growth of liquid bacterial cultures by increasing oxygen availability., J. R. Soc. Interface, vol. 8, no. 56 (2011) 334–344
• [8] N. Hirota, Y. Ikezoe, H. Uetake, J. Nakagawa, K. Kitazawa, Magnetic Field Effect on the Kinetics of Oxygen Dissolution into Water, Mater. Trans. JIM, vol. 41, no. 8 (2000) 976–980
• [9] U. E. Steiner T. Ulrich, Magnetic field effects in chemical kinetics and related phenomena, Chem. Rev., vol. 89, no. 1 (1989) 51–147
• [10] N. I. Wakayama, M. Wakayama, Magnetic Acceleration of Inhaled and Exhaled Flows in Breathing, Jpn. J. Appl. Phys., vol. 39, no. Part 2, No. 3A/B (2000) L262–L264
• [11] S. Kenjereš, Numerical analysis of blood flow in realistic arteries subjected to strong non-uniform magnetic fields, Int. J. Heat Fluid Flow, vol. 29, no. 3 (2008) 752–764
• [12] N. I. Wakayama, Magnetic promotion of combustion in diffusion flames, Combust. Flame, vol. 93, no. 3 (1993) 207–214
• [13] L. A. Gorbunov, Effect of thermoelectromagnetic convection on the production of bulk single-crystals consisting of semiconductor melts in a constant magnetic field, Magnetohydrodyn. (Engl. Transl.); (United States), vol. 23:4 (1988)
• [14] G. Karimi-Moghaddam, R. D. Gould, S. Bhattacharya, Investigation of Enhancement in Pool Boiling Heat Transfer of a Binary Temperature Sensitive Magnetic Fluid, Heat Transfer and Thermal Engineering, 8B (2013)
• [15] O. Turan, R. J. Poole, N. Chakraborty, Influences of boundary conditions on laminar natural convection in rectangular enclosures with differentially heated side walls, Int. J. Heat Fluid Flow, vol. 33, no. 1 (2012) 131–146
• [16] J. W. Elsner, Turbulencja przepływów (Turbulence of Flows), PWN, 1989
• [17] S. W. Churchill, H. Ozoe, Correlations for Laminar Forced Convection with Uniform Heating in Flow over a Plate and in Developing and Fully Developed Flow in a Tube, J. Heat Transfer, vol. 95, no. 1 (1973) 78

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).