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The article deals with measurement of flow parameters in defined 90° bend profiles of square constant cross section and it´s linking upstream and downstream straight ax [...]
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Zapoměl, Jaroslav
Abstrakt: Rotors belong to the most frequently used components of machine devices. In a number of cases they are coupled with the stationary part through hydrodynamical b [...]
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The paper deals with cooling of grooved roll. The aim is to find optimal spray parameters, specify nozzle type, geometrical configuration and feeding pressure to elongate [...]
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Diagnostics based on monitoring of response changes in relation to operation load is a method determination of residual service life of building structures, state estimat [...]
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This contribution is consider with computational modelling of oil film flow stability in long lemon, offset and lemon-offset uncavitated bearings. In this contribution is [...]
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The authors are engaged in development of adaptive analysis of RC frames using the microplane model. The utilised finite element mesh is compound of 1D and 3D elements. [...]
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Zapoměl, J.
The rotor systems consit of two principal components, of a rotor and of a stationary part, and the fluid film bearings are often used as coupling elements. As the clearan [...]
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A new experimental set-up and measuring methods for the investigation of a channel flow with a backward-facing step on one wall are described. The rectangular cross secti [...]
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This paper describes the nonlinear analysis of the reinforced concrete wall of the bubbler tower (BT) due to extreme pressure and temperature loading. The behaviour of th [...]
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Abstrakt: The distribution of the intermittency factor r is discussed in the case of boundary layer by-pass transition. Taking into consideration the turbulent outer stre [...]
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Abstrakt: EUCOR, a corundo-badelleyit material, which is not only resistant to wear but also to extremely high temperatures, is seldom discussed in literature. The solidi [...]
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The reactors VVER – 440 are cooled and moderated by pressurized water – PWR. The primary coolant is subcooled in the PWR and steam is generated by transferring energy [...]
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This contribution deals with computational modelling of static and dynamic analysis of journal bearings. In this contribution a new theoretical approach to the modelling [...]
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The contribution deals with the experimental and numerical modelling of supercritical turbulent flow in an open channel with an inclined backward-facing step on its botto [...]
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Kubik, J.
One gave equations of the viscoelasticity in which gradients of stress and strain tensors were taken into account besides the classical stress and strain fields. Finally, [...]
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18.
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Mík, V.
An analytical-numerical model of the velocity and temperature field was created, whose parameters are expressed as functions of the thickness of the hydrodynamic and ther [...]
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Rudolf, P.
Flow in a square sectioned 90 deg elbow with extremely small radius of curvature is analysed. Turbulent flow simulations with realizable k-el are performed and compared w [...]
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Despite long evolution dating long time back, fracture processes still remain a big challenge for engineers and researchers all over the world. Lately, together with “t [...]
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Uruba, V.
A new method for analysis of spatio-temporal data is proposed. This is based on combination of Proper Orthogonal Decomposition and Principal Oscillation Patterns methods. [...]
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The flow structures inside a cylindrical cavity are studied experimentally using time-resolved PIV. The flow is excited using rotating lid controlled by step motor. POD a [...]
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Reported here is the experimental study in the pipe line element T-junction. The velocity fields were measured by PIV method with 3-camera alignment. This alignment makes [...]
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The conditional analysis of the skin-friction was applied on time records made in transitional boundary layers originating under boundary conditions prescribed for the ER [...]
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Turbulent flow in a curved channel of the squared cross-section was numerically simulated using the CFX-TASCflow software. Besides the standard k-el and Menter´s k- mode [...]
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Jonáš, P.
The purpose of the contribution is to collect information on the generation, propagation and coalescence of turbulent spots and calmed regions in a transitional boundary [...]
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This paper summarises the preliminary results concerning an influence of the agitation conditions on the aggregation processes. The properties of formed aggregates affect [...]
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Results of experiments on fully developed turbulent boundary layer are presented. The boundary layer was generated on a smooth flat wall forming one side of the channel o [...]
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Uruba, V.
The method for evaluation of temporal and spatial independent modes of a dynamical system is suggested. The dynamical system is represented by time dependent vector field [...]
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Dynamics of separation process of a turbulent boundary layer subjected to adverse pressure gradient is studied experimentally. The Time Resolved PIV method is used to acq [...]
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