Simulation of thermal convection depending on the angle between gravity force and temperature gradient

• Autorzy: Jopek H.

Warianty tytułu

PL

Symulacja konwekcji cieplnej w zależności od kata pomiędzy siłą ciężkości a gradientem temperatury

• Języki publikacji: EN

Abstrakty

EN

In this papers the influence of the angle between the gravity force and the temperature gradient on the convection process is studied and simulated. Free convection is the kind of heat transfer in which the fluid's motion is caused by the volume forces, usually by the gravity force but also due to centrifugal forces or magnetic field's forces. The differences of temperature around the body are connected to differences of density and consequently buoyant force appears. For that reason, in the equations of motion the volume force is substituted by the expression representing the difference in specific weight and bouyancy which is proportional to the difference of density. It is a very common phenomenon that the convection appears in the film of fluid between the surfaces of two different temperatures

Słowa kluczowe

EN

convection; heat transport; computer simulation; thermal convection

PL

konwekcja cieplna; przepływ; wymiana ciepła; symulacja komputerowa

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Systems : journal of transdisciplinary systems science
• Rocznik: 2006
• Tom: Vol. 11, nr 1
• Strony: 29--34
• Opis fizyczny: bibliogr. 7 poz.

Twórcy

autor

Jopek H.

• Poznan University of Technology, Institute of Applied Mechanics, ul. Piotrowo 3, 60-965 Poznań,

Bibliografia

• [1] LORENZ E., Deterministic nonperiodic flow, /. Atmos. Sci., 20, 130-141.
• [2] ANDERSSON, H.I, VALNES, O.A, Flow of a heated ferrofluid over a stretching sheet in the presence of a magnetic dipole, Acta Mechanica, 128,1998, pp. 39-47.
• [3] ODENBACH S., VOLKER, Th., Thermal convection in a ferrofluid supported by thermodiffusion, J. Magn. Magn. Mater., 289 (2005) pp. 122-125.
• [4] STREK T., Ferrofluid channel flow under the influence of magnetic dipole, International Journal of Applied Mechanics and Engineering, vol. 10, 2005, pp. 103-109.
• [5] KRAKOV, M.S., NIKIFOROV, I.V., To the influence of uniform magnetic field on thermomagnetic convection in square cavity, J. Magn. Magn. Mater., 252 (2002) 209-211.
• [6] KIP THORNE, Applications of classical physics, 2003, chap.17, Caltech, http:// www.pma.cal tech.edu/Courses/phl36/yr2002/chapl7/0217.1.pdf.
• [7] HILBORN, R. C, Chaos and nonlinear dynamics, Oxford 2000, Appendix C.