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
Thermodynamics is the study of the conversion of heat energy into different forms of energy (and visa-versa) and its relation to macroscopic variables. Modern thermodynamics has a broad and interdisciplinary character and reaches out to various fields of physics, chemistry, biology, meteorology etc.
In our laboratories we study the thermophysical properties of interesting fluids such as new, eco-friendly refrigerants or ionic liquids, the changes of state of matter or phases of solid matter, such as nucleation in condensation and cavitation, synthetized and impinging pulsatile jets, blood circulation, flow in elastic blood vessels, thermodynamic aspects of chemical reactions in the human body and friction properties of joints and joint protheses. The results find application in power engineering, research of atmospheric aerosols, pump erosion prevention, microfluidics, cooling of small devices, control of large flows using tiny efforts, biomechanics and medicine.
Zuzana Broučková received the "Outstanding Paper Award" for the best paper in the "Jets" session at the HEFAT 2016 conference in Spain, held on 11-13 July 2016. The paper was entitled: Z. Broučková and Z. Trávníček: "Visualization and Heat Transfer Study of a Synthetic Jet Impinging on a Circular Cylinder".
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. »»»
The organizers are pleased to invite you to the 2014 International Symposium on Optomechatronic Technologies (ISOT2014) in Seattle, Washington, USA. ISOT 2014 will provide researchers and engineers with a great opportunity to present and discuss the latest research results, accomplishments, developments, and future directions in the integrated fields of optics and mechatronics technologies. Our meeting will be held near the University of Washington campus, within easy access of downtown Seattle. »»»
Dr. Zdeněk Trávníček has received the Outstanding Paper Award for the best paper in the session on "Heat and Mass Transfer 1" at the HEFAT 2012 conference in Malta, on 16-18 July 2012. The paper was entitled: Z. Trávníček, V. Tesař, Z. Broučková, K. Peszyński: „Annular Impinging Jet Controlled by Radial Synthetic Jets“.
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. »»»
Dr. Václav Klika has received 2nd prize in the Reinhart Heinrich Doctoral Thesis Award 2011 awarded annualy by the European Society for Mathematical and Theoretical Biology.
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. »»»
Czech National Committee for the Properties of Water and Steam (CZ NC PWS) in collaboration with University of West Bohemia will organize IAPWS 2011 Annual Meeting & Symposium held in Pilsen on September 4-9, 2011. The objective of the annual IAPWS meetings is to review and evaluate the results obtained in the working groups during the previous period, to prepare IAPWS documents for publication and to determine new objectives and assign tasks for the next period.
As part of the Meeting a one-day Symposium on Water and Aqueous Mixtures: Research for Future Energy Technologies is held on September 7. The programme of the Symposium can be found here. The registration page is open until August 22, 2011. »»»
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. »»»
When a disk rotates at constant angular velocity in otherwise still fluid a boundary layer flow is established close to the disk. Obviously the local velocity of the disk increases with radius, but to a first approximation, this radial variation of the basic flow can be neglected to produce a "local" parallel-flow linear stability theory. »»»
Abstract: Model of the human cardiovascular system is applied for the quantitative evaluation of the human activity. The entropy production was used as a relevant quantity. The comparison with the ergonometric tests is shown.
Presenter: Dipl.-Ing. Philipp Rauschenberger
The team of scientists from the University of Sheffield, including Prof. Václav Tesař, have received the 2009 Moulton medal for their paper entitled On the design and simulation of an airlift loop bioreactor with microbubble generation by fluidic oscillation published in Food & Bioproducts Processing, 2009. The medal has been awarded anually by The Institution of Chemical Engineers (IchemE) since 1929 for the best scientific paper in the field. »»»
This seminar gives an introduction of the research activities in Prof. Darina Murray's heat transfer group at Trinity College Dublin, focusing specifically on synthetic jet impingement. »»»
"Introduction to Fractional Calculus" is a forthcoming free-of-charge course offered by prof. A. I. Fedorchenko. The objective of the couse is to provide its participants with the background necessary for the understanding of the fractional calculus. The lectures will be given in English in the Institute of Thermomechanics ASCR, v. v. i.. The dates and times will be announced at a later date based on the response received. »»»
Dr. J. Healey graduated with a degree in physics at Oxford University in 1987, where he also obtained a DPhil in physics in 1991. His doctoral thesis was concerned with the analysis of phase spaces reconstructed from time series data. In 1991 he was appointed to a post-doctoral position in the Engineering Department at Cambridge University to work on the laminar-turbulent transition of boundary layers. In 1996 he was appointed first to a temporary lectureship in the Mathematics Department at Brunel University, and then to a lectureship in the Mathematics Department at Keele University. »»»
Main topics of the research of Dr. de Lange are the boundary layer transition, heat transfer and cooling in gas turbines and the thermodynamics and transient behavior of turbine/compressor systems.The flat plate boundary layer experiments in a water channel have been performed. The particle image velocimetry (PIV) was used to analyze the coherence of flow structures in the vicinity of breakdown to turbulence. »»»
As you surely know, prof. Ari Glezer is the originator of the term „synthetic jet“ and the founder of this particular branch of fluid mechanics. »»»
Abstract: While the field equations for complex fluids are usually formulated such that they respect the principles of nonequilibrium thermodynamics, the choice of »»»
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