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The Institute of Thermomechanics is a scientific and research institution of the Academy of Sciences of the Czech Republic (Research Area of Mathematics, Physics and Earth Sciences > Section of Applied Physics). The Institute conducts interdisciplinary basic research in fluid dynamics, thermodynamics, dynamics of mechanical systems, solid mechanics, interactions of fluids and solids, environmental aerodynamics, biomechanics, mechatronics, electrophysics, electrical machines, drives and power electronics and material diagnostics.
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The 16th International Conference on Nonlinear Elasticity in Materials

Conference - Prague, June 5–11, 2011

Dynamic nonlinear elastic behavior, nonequilibrium dynamics, first observed as a curiosity in earth materials has now been observed in a great variety of solids. The primary manifestations of the behavior are characteristic wave distortion, and slow dynamics, a recovery process to equilibrium that takes place linearly with the logarithm of time, over hours to days after a wave disturbance.  »»» 

Optimization of coded excitations with Symmetry Analysis: Formalism and applications in NDT...

Lecture - Serge DOS SANTOS, Assoc. Prof. at l’ENI Val de Loire U930 « Imaging and Brain» , Université François Rabelais-INSERM-CNRS, Institute of Thermomechanics AS CR, v. v. i., Dolejškova 5, Prague, lecture room B, June 3, 2011 (Friday), 10.00

Full title: Optimization of coded excitations with Symmetry Analysis : Formalism and applications in NDT with perspectives in ultrasonic nonlinear imaging of bio-materials  »»» 

Global instability of flow across a junction

Lecture - Prof. Jonathan Healey, Keele University, Anglie, Institute of Thermomechanics AS CR, v. v. i., Dolejškova 5, Prague, lecture room A, May 11, 2011 (Wednesday), 10:00-11:00

In the stability theory of shear layers, the term `local stability' refers to the stability properties of a particular velocity profile at a given position in the flow. When the basic flow develops the streamwise direction, e.g. in a growing boundary layer, the changing local stability properties can be mapped out downstream. If there are regions of local absolute instability then there is the possibility of a `global instability' of the entire flow. When the basic flow varies slowly in the downstream direction the global stability can be determined from the local stability.  »»» 

Large deformations in mechanics

Lecture - Michel Frémond, Dipt. Ingegneria Civile, Univ. Roma II Tor Vergata, Institute of Thermomechanics AS CR, v. v. i., Dolejškova 5, Prague, lecture room A, April 13, 2011 (Wednesday), 10:00

Large deformations of a solid are investigated. We use a polar decomposition of gradient matrix F = RW (R is rotation matrix, W is stretch matrix). Large deformations of solids involve local spacial interactions either in an extension or in a rotation. Because local interactions are well described by spacial gradient, matrix W intervene for extensions and matrix gradR intervene for rotations. Thus the free energy depends on W and on gradR. Moreover, free energy takes into account the local impenetrability condition. Reactions to this impenetrability condition are important in constitutive laws.  »»» 

Turbulence in (normal) fluids

Lecture - Doc. Ing. Václav Uruba, CSc., UK MFF, seminary room KFNT, no. C 126, 2nd floor building C (Kryopavilon), V Holešovičkách 2, Praha 8, February 21, 2011 (Monday), 14:00-15:00

Turbulence will be introduced as the typical state of real flowing viscous fluids (historical overview). Attributes of turbulence will be presented (diffusivity, deterministic chaos, fractal structure…). A mathematical model will be introduced and its basic properties will be shown including the Kolmogorov theory. Then a few phenomenological aspects will demonstrate the typical features of the phenomenon (stability, complexity…).

Colloquium Dynamics of Machines 2011

Conference - Institute of Thermomechanics AS CR, Prague, February 1–2, 2011

The aim of the Colloquium is to facilitate the exchange of up to date information and knowledge among specialists in dynamic of machines and mechanical systems. The main attention will be focused on:  »»» 

Topical Problems of Fluid Mechanics 2011

Conference - Institute of Thermomechanics AS CR, Dolejškova 5, Prague, February 16–17, 2011

The aim of the conference is to discuss contemporary problems of fluid mechanics and to bring out latest results obtained in the course of solution of grant projects supported by grant agencies in Czech Republic and abroad. The attendance of experts from the academician institutes, technical universities and from the other research institutions is assumed. The official languages of the conference are English and Czech.  »»» 

Interactions and Feedbacks 2010

Conference - Prague November 23-24, 2010

Prague November 23-24, 2010 The 11th seminar will discuss the problems of interaction od dynamical systems with the surrounding liquid or gas environment and the problems of dynamic systems with feedback.  »»» 

Colloquium FLUID DYNAMICS 2010

Conference - IT AS CR, v.v.i. Praha, October 20 - 22, 2010

The Institute of Thermomechanics AS CR, v.v.i., Prague, the Czech Society for Mechanics and the ERCOFTAC Czech Pilot Centre will organize Colloquium FLUID DYNAMICS 2010 held on October 20 – 22, 2010.  »»» 

Large-Eddy Simulation on Plume Dispersion within Regular Arrays of Cubic Buildings

Lecture - Dr. Hiromasa Nakayama, Institute of Thermomechanics AS CR, v. v. i., Dolejškova 5, Prague, lecture room A, September 6, 2010 (Monday) at 14.30

Dr. Hiromasa Nakayama is a researcher in the Japan Atomic Energy Agency, Ibaraki, Japan.

Abstract: There is a potential problem that hazardous and flammable materials are accidentally or intentionally released into the atmosphere, either within or close to populated urban areas. For the assessment of human health hazard from toxic substances, the existence of high concentration peaks in a plume should be considered.  »»» 

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