Информационная система "Конференции"

All-Russian Conference "New mathematical models of continuum mechanics: Construction and investigation" devoted to 90-years anniversary of academician L. V. Ovsyannikov

Novosibirsk, April 23-28, 2009

Abstracts

Dynamics and heat transfer in a vapor cavity behind of evaporation front.

Aktershev S.P., Ovchinnikov V.V.

Institut of Thermophysics SB RAS (Novosibirsk)

Vapor flow in a cavity formed behind the evaporation front which moves with constant speed along the cylindrical heater is investigated. In one-dimensional approach the steady flow of vapor in a frame of reference connected with evaporation front is considered. The distributions of pressure and velocity of vapor taking into account vapor inflow through an interface calculated numerically. The mass flux of a vapor on an interface is obtained from the heat transfer in a liquid. Velocity of front of transpiration is calculated by model [1]. The form of a surface of a vapor cavity in calculations is considered set, according to experimental data [2]. The gained results are used for an estimation of influence of vapor flow from the cavity on dynamics of an initial vapor bubble which precedes appearance of evaporation fronts

1 S. P. Aktershev and V. V. Ovchinnikov. Model of steady motion of the interface in a layer of a strongly overheated liquid. Journal of Applied Mechanics and Technical Physics, 2008, Vol. 49, No. 2, pp. 47-55

2 B.P. Avksentyuk, V.V. Ovchinnikov. The shape of a vapor cavity at explosive heterogeneous boiling. // Thermophysics and Aeromechanics, 2004, Vol. 11, No 4, pp.609-616.

Note. Abstracts are published in author's edition

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