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Institute | Research | ||||||
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© ID 2005-2010 | ||||||
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The Institute of Thermomechanics AS CR
has a mostly interdisciplinary character and its main mission is to undertake and promote the fundamental research in fields of applied physics focused to fluid dynamics, thermodynamics, dynamics of mechanical and electrical systems, solid mechanics, material diagnostics, biomechanics, power engineering, and interaction between solid and fluid phases. The Institute emphasis is particularly put to application of new information in fields of common relevance, as e.g. the development of new materials and technologies, bio-engineering, and ecology.
The Institute contributes to the improvement of the standard of knowledge and the
transfer of its research-based results to practice, organises conferences and other meetings, publishes periodicals and proceedings, and provides doctoral study programmes in co-operation with universities.
Structure of R&D Groups
RESEARCH DEPARTMENTS
Transition to turbulence, coherent structures, active flow-control, complex flows, and advanced experimental techniques.
Coherent structures, complex flows, transonic channel flows, flow-elastic body interaction, and advanced experimental techniques.
Supplies the other laboratories with precise etalons for temperature and pressure at international level of accuracy.
Very accurate measurements of pvT relations of fluids by the Burnett method and thermal conductivity measurements of electrically non-conducting fluids by the hot wire technique.
Experimental and theoretical investigation of nucleation and growth of droplets and bubbles from a supersaturated mother phase and study of the effects of phase transition on fluid flow.
Laminar-turbulent transition in a thermal plasma plume and sta-bility/bistability of free/confined jets.
Description of chemo-mechanical conversion in the heart, blood flow in blood vessels and operating reliability including lubrication of hip joint endoprosthesis. Biomechanics (hydrodynamics) of the cerebrospinal fluid in craniospinal system.
Identification and tuning of complicated and mechatronic dynamical systems; development of methods of mathematical and physical modelling; optimisation of dynamical systems.
Monitoring of vibrations and dynamic loadings of machine elements during rotation; vibrodiagnostics of rotating machines; vibro-acoustic properties of mechanical systems with dissipative layers; vibrations of nonlinear systems, numerical simulation and analysis (stability, chaos).
Development of theoretical methods verified by experiments for fluid-structure interaction problems; modeling of vibrating structures interacting with fluid flows and with acoustic media; vibrational characteristics and stability boundaries of aero-hydroelastic systems; modeling of aeroelastic and fluid-structure interaction phenomena in biomechanics.
Physical acoustics, wave mechanics, nonlinear acoustics, ultrasonic methods for material properties evaluation of metals (inter-metallics), ceramics, composites, functional materials, characterization of material structure and damage, signal and image processing, instrumentation (special sensor design).
Experimental methods for studying stress wave propagation in solids.
Continuum mechanics, computational mechanics, finite element method.
Analysis, simulation, and measurement of electromechanical systems comprising rotating electric machines and solid-state converters; development of control methods and algorithms for electric drives and power generation units; research of variable-speed power generation units for effective utilization of renewable energy sources (wind and hydro power).
Semiconductor converters based on up-to-date power switching devices (e.g. IGCTs) including their control and regulating circuitry, promising control strategies for power electronics systems, reduction of EMI noise, active filters.
Experimental investigations of dynamic phenomena and coherent structures in electric arcs and thermal plasma jets, solution of Boltzmann kinetic equation, application of kinetic theory to computations of transport coefficients in high temperature gases.
Development of nonstandard numerical methods for solution of electromagnetic fields (integral methods, higher-order finite element methods), algorithms for solution of coupled problems in heavy current and power electrical engineering and research of selected problems of electromagnetic compatibility.
Acoustic emission, ultrasonic testing including nonlinear elastic wave spectroscopy, nondestructive evaluation of materials and structures incl. biomaterials, advanced signal analysis, wave modelling and artificial neural networks.
DETACHED BRANCH OFFICES
Modelling of stress wave propagation in solid bodies; Complex analysis of non-stationary stress state of shells and plane bodies (disks, wall strips, plates) under the influence of geometrical discontinuities (notches, cracks, cavities); Numerical (FEM) and experimental (dynamic resistance strain gauge) stress state analysis of nuclear fuel container models under drop tests.
Experimental and numerical study of fatigue damage of materials; fatigue lives and crack propagation. The laboratory equipment allows to apply uni-axial harmonic or random loading of specimens under computer controlled operation as well as two-axial combined stress, in both harmonic and random modes of loading processes.
The interdisciplinary fusion of mechanics, electrical, electronics and information technology. The objective is engineering for complete product development.
Cardiac cell biomechanics, Hip and elbow endoprostheses reliability, Mathematical modelling of radiative heat transfer in thermal plasmas.
Research of steam flow with heterogeneous phase transition; experimental modelling of transonic flows in channels and blade cascades.
Development of numerical methods for gas dynamics with application in external and internal transonic flows, incompressible viscous flows and atmospheric boundary layer flows including pollution dispersion.
SUPPORTING GROUPS
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