2015 1(16)

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   Short abstract

 

Pages:

222 - 226

Language:

RU

Ref.:

11


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2015_1(16)_42.pdf

 

 

GENERATION AND EVOLUTION OF PRESSURE WAVES DURING PHASE TRANSITIONS

Lezhnin S.I., Pribaturin N.A.

Institute of Thermophysics SB RAS, Novosibirsk, Russia


Citation:

Lezhnin, S.I. and Pribaturin, N.A., (2015) Generation and evolution of pressure waves during phase transitions, Modern Science: Researches, Ideas, Results, Technologies, Iss. #1(16), PP. 222 - 226.


Keywords:

explosive boiling; interface condensation; decompression; waves of compression and rarefaction


Abstracts:

The general and specific regularities of the generation of pressure waves at the "liquid - vapor" interface in various physical situations have been considered. The process of formation and propagation of the depression wave at spontaneous contact оf cold liquid and saturated vapor is investigated in a gas dynamics approach. The influence of intensification of heat-transfer processes on the pressure pulse form is investigated. Results of the investigation are in good agreement with results of modeling based on numerical solving the Boltzmann kinetic equation. Based on the original piston model of liquid detachment off the vaporization surface simple analytic and numerical approximations for inertia-controlled growth of vapor bubbles ensemble on a flat heated surface at different conditions were obtained. The laws for bubbles growth and near-wall fluid pressure have been obtained. Based on the model with nonequilibrium phase transformations we have performed a numerical study of the formation process and the evolution of the pressure wave in the atmosphere, caused by mechanical rupture of the pipeline with hot coolant. It is shown that the amplitudes and the wave profiles at different times and types of rupture are essentially differing.


References:

  1. Lezhnin S.I., Sorokin A.L. Modelirovanie evolyutsii impulsa razrezheniya pri kontakte kholodnoy zhidkosti i nasyshchennogo para // Teplofizika i aeromekhanika. - 2010. - T. 17. - № 3. - pp. 397 - 400.

  2. Kuznetsov V.V., Vasserman E.S. Dinamika vzryvnogo vskipaniya na mezoporistoy poverkhnosti // Dinamika sploshnoy sredy. - Novosibirsk: Institut gidrodinamiki SO RAN, 2001. - Vyp. 117. - pp. 25 - 29.

  3. Vasserman E.S. Lezhnin S.I. Inertia-controlled regime of collective bubble growth on a flat microheater // Proc. of Int. Conf. of Heat Transf. and Fluid Flow in Microscale. Castelvechio Pascoli, 2005. - P. 106 -117.

  4. Varlamov Yu.D., Meshcheryakov Yu.P., Lezhnin S.I. i dr. Evolyutsiya parovoy kaverny pri vzryvnom vskipanii na plenochnom mikronagrevatele: eksperiment i chislennoe modelirovanie // Prikladnaya mekhanika i tekhnicheskaya fizika. - 2007. - T. 48. - №4. - pp.79 - 87.

  5. Ivandaev A.I., Gubaydullin A.A. Issledovanie nestatsionarnogo istecheniya vskipayushchey zhidkosti v termodinamicheski ravnovesnom priblizhenii // Teplofizika vysokikh temperatur. - 1978. - T. 16, - № 3. - PP. 556 - 562.

  6. Alekseev M.V., Lezhnin S.I., Pribaturin N.A., Sorokin A.L. Generatsiya udarnovolnovykh i vikhrevykh struktur pri istechenii strui vskipayushchey vody // Teplofizika i aeromekhanika. - 2014. - T. 21. - № 6. - PP.795 - 798.

  7. Jay P. Boris, Alexandra M. Landsberg, Elaine S. Oran, John H. Garder. LCPFCT - Flux-Corrected Transport Algorithm for Solving Generalized Continuity Equations. NRL/MR/6410-93-7192.

  8. Labuntsov D.A., Kryukov A.P. Analysis of intensive evaporation and condensation // Int.J. Heat and Mass Transfer. - 1979. - Vol. 22. - P. 989 -1002.

  9. Yastrebov A.K. Ob ispolzovanii neravnovesnykh granichnykh usloviy dlya issledovaniya kondensatsii pri vnezapnom kontakte kholodnoy zhidkosti i nasyshchennogo para // Izvestiya RAN. Energetika. - 2010. - №6. - PP. 21- 29.

  10. Pribaturin N., Lezhnin S., Sorokin A. et al. The investigation of shock waves forming by disruption of vessel // Proc. of the 18th Int. Conf. on Nuclear Engineering (ICONE18-32297), May 17-21, 2010, Xi'an, China, CD. - 7P.

 

 
     

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