Influence of the position of a heating stripe on the natural convective heat transfer in a square cavity

• Autorzy: Calcagni B. , Di Perna C. , Paroncini M.
• Języki publikacji: EN

Abstrakty

EN

This paper deals with an experimental and numerical investigation of natural convection in a two-dimensional square enclosure having a local stripe heater, positioned on the lower wall; the cavity is filled with air cooled by the side walls. The temperature distribution inside the enclosure is experimentally analyzed with the real-time and double-exposure holographic interferometry for steady-state and temporal evolution of the phenomenon. The experimental data has been compared with the results of a numerical analysis and graphs presenting the Nusselt against the Rayleigh number for various heat source position are finally presented.

Słowa kluczowe

EN

free convection; holographic interferomery; numerical investigation; square enclosure

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2005
• Tom: Vol. 26, no. 1
• Strony: 65--78
• Opis fizyczny: Bibliogr. 21 poz., rys., wz.

Twórcy

autor

Calcagni B.

• Dipartimento di Energetica, Universita Politecnica delle Marche, via Brecce Bianche, 60100 Ancona, Italy

autor

Di Perna C.

• Dipartimento di Energetica, Universita Politecnica delle Marche, via Brecce Bianche, 60100 Ancona, Italy

autor

Paroncini M.

• Dipartimento di Energetica, Universita Politecnica delle Marche, via Brecce Bianche, 60100 Ancona, Italy

Bibliografia

• [1] AYDIN O., UNAL A. AND AYHAN T.: Natural convection in rectangular enclosures heated from one side and cooled from the ceiling, Int. J. Heat Mass Trans., Vol. 42, (1999a), 2345-55.
• [2] AYDIN O., UNAL A. AND AYHAN T.: A numerical study on buoyancy-driven flow in an inclined enclosure heated and cooled on adjacent walls, Numer. Heat Trans. A, Vol. 36, (1999b), 585-589.
• [3] AYDIN O. AND YANG W-J.: Natural convection in enclosures with localized heating from below and symmetrical cooling from sides, Int. J. Num. Methods Heat Fluid Flow, Vol. 10, No. 5, (2000), 519-529.
• [4] CESINI G., PARONCINI M., RICCI R.: Holographic interferometry for heat transfer studies, Proc. of the 1st Int. Conf. on New Laser Technologies and Applications, Olympia, Greece, 1988, 455-468.
• [5] CESINI G., PARONCINI M., CORTELLA G. AND MANZAN M.: Natural convection from a horizontal cylinder in a rectangular cavity, Int. J. Heat Mass Trans., Vol. 42, (1999), 1801-1811.
• [6] CHU T. Y., HlCHOX C. E.: Thermal convection with large viscosity variation in an enclosure with localized heating, J. Heat Transfer, Vol. 112, (1990), 388-95.
• [7] FLUENT User's Guide, release 6.0, Fluent Incorporated.
• [8] GANZOROLLI M. M. AND MILANEZ L. F.: Natural convection in rectangular enclosures heated from below and symmetrically cooled from the sides, Int. J. Heat Mass Trans., Vol. 38, No. 6, (1995), 1063-73.
• [9] HASNOUI M., BILGEN E., VASSEUR P.: Natural convection in rectangular cavities partially heated from below, J. Thermophisics Heat Trans., Vol. 6, No. 2, (1992), 43-48.
• [10] HAUF W., GRIGULL U.: Optical methods in heat transfer, Advances in Heat Transfer, Vol. 6, 1970, 133-311.
• [11] INCROPERA F. P.: Convection heat transfer in electronic equipment cooling, J. Heat Transfer, Vol. 110, No. 4, (1988), 1097-1111.
• [12] KlM S.J., LEE S.W.: Air cooling technology for electronic equipment, CRC Press, Boca Raton, LA (1996).
• [13] NTIBARUFATA E., HASNAOUI M., BILGEN E., VASSEUR P.: Natural convection in partitioned enclosures with localized heating, Int. J. Num. Meth. Heat Fluid, Vol. 3, 1993, 133-143.
• [14] NOVEMBER M. AND NANSTEEL M. W.: Natural convection in rectangular enclosures heated from below and cooled along one side, Int. J. Heat Mass Trans., Vol. 30 No. 11, (1987), 2433-40.
• [15] RAJI A., HASNAOUI M., ZRIKEM Z.: Natural convection in interacting cavities heated from below, Int. J. Num. Meth. Heat Fluid, Vol. 7, (1997), 580-597.
• [16] RAMOS R. A. V., MILANEZ L. F.: Numerical and experimental analysis of natural convection in cavity heated from below, Proc. 11th IHTC, Kyongju, Korea, Vol. 3, (1998).
• [17] SARRIS I. E., LEKAKIS I., VLACHOS N. S.: Natural convection in rectangular tanks heated locally from below, Int. J. Heat Mass Transfer, 47(2004), 3549-3563.
• [18] SEZAI I., MOHAMAD A.A.: Natural convection from a discrete heat source on the bottom of a horizontal enclosure, Int. 'J. Heat Mass Transfer, 43(2000), 2257-2266.
• [19] STORK K., MULLER U.: Convection in a box: experiments, J. Fluid Mech., Vol. 54, (1972), 599-611.
• [20] TORRANCE K, E., ORLOFF L. AND ROCKETT J. A.: Experiments on natural convection in enclosures with localized heating from below, J. Fluid Mech., Vol. 36, (1969), 21-31.
• [21] TURNER B. L. AND FLACK R. D.: The experimental measurement of natural convective heat transfer in rectangular enclosures with concentrated energy sources, J. Heat Transfer, Vol. 102, (1980), 236-41.