From the series
Institute of Thermomechanics Seminar:
Non-standard damped oscillators
Prof. Dalibor Pražák, Charles University in Prague
Wednesday, May 3, 2017, 10:00
Conference Room B
The Institute of Thermomechanics is inviting you to two lectures of our colleagues from the Institute of Fluid Flow Machinery of the Polish Academy of Science, Gdańsk, which will be held on 6 December 2016 at 10:00 in the "club room" at Dolejškova 1402/52, 182 00, Prague 8. »»»
Abstract: The presentation of the authors Drozdz A., Elsner W. will show new achievements in the research of a turbulent boundary layer structure and effect of pressure gradient.
Abstract: Presentation of recent results of the long-time project on gas-liquid flow in packed bed by collective of authors: D. Asendrych, P. Niegodajew, M. Marek, S. Drobniak, W. Elsner.
We kindly invite you to the lecture of Dr. Shan Zhong from the School of Mechanical, Aerospace and Civil Engineering, Manchester University, UK, entitled „Understanding the fluid mechanics of synthetic jets for flow separation control“. The lecture will take place in the Lecture Room A of the Institute of Thermomechanics ASCR on June 10, 2014 at 10:30. »»»
DATE CHANGED! The lecture will consist of two parts: 1) Thermo-economical analysis of supercritical coal-fired power unit (will be presented by Prof. W. Elsner); 2) Numerical modelling of CO2 absorption and desorption in CCS installation (will be delivered by Prof. S. Drobniak). »»»
The Czech Society for Mechanics kindly invites you to attend the lecture entitled „Problems of Static and Dynamics Strength of Gas Turbine Elements“, which will be presented in Russian by N. J. Оvcharova and I. S. Vorobiov from the A. N. Podgorny Institute for Mechanical Engineering Problems, NASU, Kharkov, Ukraine. »»»
Abstract: OECD-NEA benchmark on MATiS-H experiment. Flow downstream of the mixing vanes in fuel rod bundles. Experimental and numerical investigation on heat transfer and fluid mechanics. Extended surfaces heat transfer optimization for High Temperature Gas Cooled Nuclear Reactors fuel rods.
Czech Technical University in Prague, Czech Society for Mechanics and the Institute of Thermomechanics AS CR, v. v. i. invites you to the lecture by K.C. Park, professor of Center for Aerospace Structures, University of Colorado, Boulder, Colorado, USA and WCU Invited Professor, Division of Ocean Systems Engineering, School of Mechanical, Aerospace and Ocean System Engineering, KAIST, Daejeon, the Republic of Korea. »»»
Přednáška se bude týkat termodynamických a strukturních vlastností kapalné vody, zejména v metastabilním podchlazeném stavu, a vysvětlení anomálií vody na základě hypotézy druhého kritického bodu.
The flow set up by rotating a disc at constant angular velocity about its axis, in otherwise still fluid, is a classical problem in fluid mechanics. The resulting three-dimensional boundary layer is a useful model for the flow over swept wings and turbine blades. »»»
The Department of Electric Machines, Drives and Power Electronics cordially invites you to attend the lecture by Prof. Sergei Ryvkin on Wednesday, April 11, 2012 at 14:00 in the Lecture Room A of the Insitute of Thermomechanics ASCR. The lecture is entitled "Sliding mode control for electric drives". Prof. Ryvkin currently works as a leading scientist in the Trapeznikov Institute of Control Sciences of Russian Academy of Sciences in Moscow. »»»
The Czech Society for Mechanics invites you to a lecture entitled Vibrations of steam and gas turbines elements, which will be given by Professor Iurii S. Vorobiov from the A.N. Podgorny Institute for Mechanical Engineering Problems of the National Academy of Sciences of Ukraine, Kharkiv, Ukraine. »»»
Dr. Timchenko is a senior lecturer at the School of Mechanical and Manufacturing Engineering, The University of New South Wales, Sydney, Australia. Her areas of expertise are computational fluid dynamics and heat transfer. Research interests include natural convection and phase change problems; solidification and melting processes under earth gravity and space microgravity conditions; cooling of building integrated photovoltaic systems and microelectronic devices; biomedical applications. »»»
Prof. Can Fuat Delale received his M.Sc. degree in Physics in 1979 at Lehigh University (USA) and his Ph.D. degree in Fluid Mechanics and Thermodynamics in 1983 at Brown University (USA). He is a member of a number of scientific societies, holder of a number of prizes, fellowships and awards and the referee for a number of distinguished scientific journals. More details about his CV including the list of his publications can be found here. »»»
The presentation is a part of the Presentation Series on Computational Solid Mechanics held on August 3-17, 2011 in the Institute of Thermomechanics ASCR v. v. i. »»»
Full title: Optimization of coded excitations with Symmetry Analysis : Formalism and applications in NDT with perspectives in ultrasonic nonlinear imaging of bio-materials »»»
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 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 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…).
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. »»»
We kindly invite you to the following two lectures: »»»
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