Library Subscription: Guest
Begell Digital Portal Begell Digital Library eBooks Journals References & Proceedings Research Collections
International Journal of Fluid Mechanics Research
ESCI SJR: 0.206 SNIP: 0.446 CiteScore™: 0.5

ISSN Print: 2152-5102
ISSN Online: 2152-5110

International Journal of Fluid Mechanics Research

DOI: 10.1615/InterJFluidMechRes.v25.i1-3.350
pages 400-407

Heat Transfer in Bubbly Liquids: Fundamentals and Waves

A. A. Gubaidullin
Tyumen’ Affiliate of the Institute of Theoretical and Applied Mechanics, Siberian Branch of the Russian Academy of Sciences, Tyumen’, Russia

ABSTRACT

The theory of non-steady wave processes in two-phase gas-liquid media with bubble structure, including hierarchy structure of mathematical models of bubbly liquids dynamic behavior, has been developed. The models differ in the degree of accounting the effects of pressure, temperature and phase velocities non-coincidence in the process of dynamic deformation. Estimations of the influence of dynamic and heat interaction between gas and liquid on shock waves evolution have presented. The technique of the worked out models program realization has been proposed. All models have been realized on a computer. A considerable number of computational experiments has been carried out, resulting in defining the principal mechanisms determining shock waves evolution in bubbly liquids in a wide range of parameters. In particular, it has been shown that shock waves evolution in low-viscous liquids with bubble size about 1 mm is determined by heat dissipation resulting from non-equilibrium heat transfer between the gas in the bubbles and surrounding liquid. Thermophysics characteristics of the gas, insignificant in volume and still more insignificant in mass, play the decisive role on evolution and formation of oscillar and monotonous wave configuration. It has been discovered that at waves propagation there may be observed their amplification as a result of the presence of locative deformation inertia characteristics in the bubbly system. The mechanism and peculiarity of shock waves amplification have been studied. The analysis of other experimental data contained in literature has been carried out. The comparison of the calculated and experimental data has proved correctness of the worked-out theory.


Articles with similar content:

Critical Phenomena and Structural Effects in Combustion of Disordered Heterogeneous Mixtures
Heat Transfer Research, Vol.38, 2007, issue 1
P. S. Grinchuk, O. S. Rabinovich
Boiling of Liquid on Surfaces with Porous Coatings
Heat Transfer Research, Vol.35, 2004, issue 5&6
B. V. Kichatov, V. M. Polyaev
Fluid Bed Heat Exchanger: A Major Improvement in Severe Fouling Heat Transfer
ICHMT DIGITAL LIBRARY ONLINE, Vol.19, 1981, issue
Dick G. Klaren
THE THEORY OF MULTIPHASE TURBULENT POLYDISPERSE FLOWS WITH STRONG PARTICLE INTERACTION
ICLASS 94
Proceedings of the Sixth International Conference on Liquid Atomization and Spray Systems, Vol.0, 1994, issue
A. A. Shraiber, V.A. Naumov, A. M. Podvysotsky, V. V. Dubrovsky
ATTENUATION OF RADIANT ENERGY WITH GAS−DUST FLOWS
International Heat Transfer Conference 6, Vol.3, 1978, issue
S. M. Arinkin, F.B. Yurevich , L.A. Konyukh, G.M. Yatskevich