Convective and Hydrodynamic Instability. Multiphase Flows. Vibrational Fluid Dynamics

Basic Divisions: Departments of Theoretical and General Physics.
 
Brief Description of Research Activities
A series of works was carried out on investigation of non-Boussinesq effects in free thermal convection within generalized Boussinesq approximation that allows correct accounting for the deformations of interface.
 
A number of works was carried out to study the effect of vibration on equilibrium, stability and non-linear dynamics of multicomponent and multiphase media. A new vibrational mechanism of binary mixtures equilibrium instability was discovered which can lead to instability even in the absence of gravity. The regularities of forming structures in various suspensions and emulsions of microorganisms were formulated that pave the way to the development of vibrational phase separation technologies.
 
A certain number of works was devoted to the study of non-stationary external field effect on flows and heat and mass transfer in crystal growing. It was discovered for the directional solidification of binary alloys that normal vibrations promote morphological instability of the planar front while tangential vibrations make stabilizing effect; the greatest positive effect is achieved with the use of rotational vibrations: in this case it is possible to attain a substantial improvement of admixture distribution homogeneity in the crystal raising the threshold of morphological instability.
 
The methods for vibration impact on oil bearing layer promoting oil recovery were  developed.
 
Theoretical models of interface dynamics in porous media for application to the problem of natural hydrates melting have been also developed.
 
Research results are used in development of natural phenomena and technological process control methods. In particular, they are of paramount importance for understanding and solving the problems of global warming, pollution dissemination by air and water flows, disaster consequences mitigation and for effective control of crystal growing and phase separation processes.
 
Publications Characterising Scientific Research Trend
1. Gershuni G.Z., Lyubimov D.V. Thermal Vibrational Convection. Wiley; N.Y. et al., 1998. 358 p.(In English)
2. Lyubimov D.V., Lyubimova Т.P., Cherepanov А.А. Dynamics of Interfaces in Vibration Fields. Moscow.: Phys.Math.Lit., 2003. 216 p. (In Russian)
3. Lyubimov D., Lyubimova T., Vorob’ev A., Moitabi A., Zappoli B. Thermal Vibrational Convection in Near-Critical Fluids. Part I. Non-uniform heating// J. Fluid Mech. 2006. 564. 159-183.(In English)
4. Lyubimova T.P., Lyubimov D.V., Morozov V.A., Scuridin R.V., Hadid H.Ben., Henry D. Stability of Convection in a Horizontal Channel Subjected to a Longitudinal Temperature Gradient. Part 1: Effect of aspect ratio and Prandtl number// J. Fluid Mech. 2009. Vol. 635. pp. 275–295.(In English)
5. Dmitry V. Lyubimov, Tatyana P. Lyubimova and Sergey V. Shklyaev. Behavior of a Drop on an Oscillating Solid Plate// Phys. Fluids 2006.18, 012101. (In English)
6. Shevtsova V., Melnikov D., C.Legros J., Yan Y., Saghir Z., Lyubimova T., Sedelnikov G., Roux B. Influence of Vibrations on Thermodiffusion in Binary Mixture: A benchmark of numerical solutions// Phys. Fluids. 2007.19. 017111. (In English)
7. Frick P.G. Turbulence: Approaches and Models. Mow-Izhevsk: Institute of Computer Research, 2003. 292 p. (In Russian)
8. Dobler W., Frick P., Stepanov R. The screw dynamo in a time-dependent pipe flow// Phys. Rev. E. 2003. Vol.67. 056309.(In English)
9. Frick P., Stepanov R., Sokoloff D., Beck R. Wavelet Based Faraday Rotation Measure Synthesis// Mon. Not. R. Astron. Soc. Letters. 2010. Vol.401. L24–L28. (In English)
 
Fundamental Research Projects within the Main Scientific Trend
1. Grant from the Program for State Support of Leading Scientific Schools "Convection. Convective and Hydrodynamic Stability”, NSH-1981.2003.1, 2003-2005.
2. Grant of RFBR 06-01-00693  ”Theoretical Study of Vibration Effect on Multiphase Media Behaviour”, 2006-2008.
3. Grant from the Higher School Scientific Potential Development Program 2.2.2/4463. “Non-Linear Dynamics of Heterogeneous Media. Structure-Forming Processes. Functional Materials Properties Control”, 2009-2011.
4. Grant of RFBR 10-01-00679  “Convection in Stably Stratified Media”, 2010-2012.
 
Projects Based on Enterprise Orders
1. R&D activities contracted with “Energy” rocket and Space Corporation for the creation of “Dakon” scientific equipment (Convection Sensor) and for experiments on “MIR” orbital station, 1991 – 2000.
2. R&D activities contracted with “Energy” rocket and Space Corporation for the creation of “Dakon-M” scientific equipment (Modernized Convection Sensor) and for experiments on International Space Station, 2002 – up to now.
 
Researchers Training
There are Postgraduate School and Doctorate facilities for the specialty 01.02.05 “Liquid and Gas Mechanics”.
 
International Scientific and Educational Activities  
These activities take form of participation in various international scientific and educational projects, e.g.
 
French-Russian network for collaboration in research and postgraduate training with Mediterranean University (Marseille, France) is at work since 1993.
 
Trilateral Cooperation Programme “Russian-German-French University”. Project “Complex Fluid Dynamics, High Performance Computing, Modelling and Process Control”.
Project Partners:
• Mediterranean University, Marseille, France
• Lyon University, France
• Toulouse University, France
• Avignon University, France
• Freiburg University, Germany
• Potsdam University, Germany
• Karlsruhe University, Germany
• Giessen University, Germany
• Bayreuth University, Germany
• Berlin Technical University, Germany
• Perm State University
• Institute of Continuous Media Mechanics UB RAS
• Novosibirsk Technical University
• Institute of Computational Mathematics and Mathematical Geophysics SB RAS
• Nizhegorodskiy Technical University.
 
Grant of  INTAS-2000-0617 “New ways of active control of flows in liquid systems with interfaces. Applications to crystal growth, for zero gravity or for terrestrial conditions”. 
Project Partners:
•  Mediterranean University, Marseilles, France
• Crystallography Institute of Freiburg University, Freiburg, Germany
• Perm State University
• Institute of Continuous Media Mechanics UB RAS, Perm, Russia
• Moscow Chemical Technology University, Moscow, Russia
• Moscow State Aviation Institute, Moscow, Russia
• Moscow State University, Moscow, Russia
 
Research and Education Centre “Non-Equilibrium Transitions in Continuous Media” under the joint Programme of CRDF and RF Ministry of Science and  Education “Basic Research and Higher Education”, 2002-2012.
 
Grant of RFBR–Taiwan NNS, 05-01-90556, RP05E40 “Theoretical and Experimental Investigation of Double-Diffusive Flow and Interface Morphology in Alloy Directional Solidification of under Angular Vibration”, 2005 – 2008.
Project Partners:
• Perm State University
• Institute of Continuous Media Mechanics UB RAS, Perm, Russia
• National Technological University, Taipei, Taiwan
• National University, Taipei, Taiwan.
 
Joint Research and Postgraduate Training Programme under financial support of French Ministry for Research and Education. Project: "Modeling and Numerical Simulation of Complex Flows and Applications: Management of Geo-Ecological Risks and Process Control", 2005-2009.
 
ARCUS Programme (Actions en Regions de Cooperation Universitaire et Scientifique) of French Ministry for Foreign Affairs. Project: "Lorraine-Russie”. Sections 6а “Vibrational Dynamics and Control” and 6b “Fluids and  Materials in Space”, 2006-2008.
Project Partners:
• National Polytechnical Institute of Lorraine, Nancy
• ЕСТ FR633 CNRS R&D Amalgamation, Nancy, France
• Mediterranean University, Marseille, France
• Perm State University, Perm, Russia
• Institute of Continuous Media Mechanics UB RAS, Perm, Russia
• Mendeleev Russian Chemical Technology University, Moscow, Russia
 
Grant of CRDF-CGP RUP1-2689-PE-05 “Effect of Vibrations and Acoustic Field on Stability of Droplets and Displacement Fronts Movement in Porous Media”. 2006-2008.
Project Partners:
• Perm State University
• Michigan-Dearborn University, Dearborn, USA
 
Grant of CRDF-RFBR RUP1-2945-PE-09, 09-01-92505-IК, “Hydrodynamic Models of Gas Filtration and Instabilities Associated with Methane Release from Natural Hydrates”. 2009-2011.
Project Partners:
• Perm State University
• Michigan-Dearborn University, Dearborn, USA
 
Space experiment IVIDIL on study of the effect of vibrations on thermodiffusion separation of binary mixtures was conducted on board of International Space Station in 2009-2010.
Project Partners:
• Free University of Brussels, Brussels, Belgium
• Ryerson University, Toronto, Canada
• Perm State University.
• Institute of Continuous Media Mechanics UB RAS, Perm, Russia
 

The leading scientists

Dmitriy V. Lyubimov


Address
15 Bukireva, Perm 614990, Russian Federation
Perm State University
Faculty of Physics
Department of Theoretical Physics
 
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Tatyana P. Lyubimova


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15 Bukireva Str., Perm 614990, Russian Federation
Perm State University
Faculty of Physics
Department of Theoretical Physics
 
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Gennady F. Putin


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15 Bukireva, Perm 614990, Russian Federation
Perm State University
Faculty of Physics
Department of General Physics
 
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Yuri K. Bratukhin


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15 Bukireva, Perm 614990, Russian Federation
Perm State University
Faculty of Physics
Department of General Physics
 
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Peter G. Frick


Address
1 Akademika Koroleva, Perm 614013, Russian Federation, Institute of Continuous Media Mechanics, Ural Branch of RAS,  
15 Bukireva, Perm 614990, Russian Federation, Perm State University Faculty of Physics, Department of General Physics
 
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+7(342) 237 83 22, This email address is being protected from spambots. You need JavaScript enabled to view it.
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