Volume 15, number 2 (2021) Collection home page

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Collection's Items (Sorted by Submit Date in Descending order): 1 to 6 of 6
Náprstek, Jiří , Fischer, Cyril
Random response of a simple system with stochastic uncertainty and noise in parameters

The paper is concerned with the analysis of the simultaneous effect of a random perturbation and white noise in the coefficient of the system on its response. The excitation of the system of the 1st order is described by the sum of a deterministic signal and additive...

Musil, Josef , Příhoda, Jaromír , Fürst, Jiří
Numerical simulations of the 2D supersonic flow through the tip-section turbine blade cascade with a flat profile

Numerical simulations of 2D compressible flow through the tip-section turbine blade cascade with a flat profile and the supersonic inlet were carried out by the OpenFOAM code using the Favre-averaged Navier-Stokes equations completed by the γ-Re_θt bypass transition model with the SST t...

Jančík, Petr , Hyhlík, Tomáš
Kinematic and dynamic analysis of dam break flow impact on vertical walls using weakly compressible SPH

This article presents the kinematic and dynamic analysis of a dam break flow based on data obtained from numerical solutions by the smoothed particle hydrodynamics (SPH) method. The method and original algorithms necessary for correct pressure evaluation are thoroughly described. The pressur...

Hájek, Petr , Švancara, Pavel , Horáček, Jaromír , Švec, Jan G.
Finite-element modeling of vocal fold self-oscillations in interaction with vocal tract: Comparison of incompressible and compressible flow model

Finite-element modeling of self-sustained vocal fold oscillations during voice production has mostly considered the air as incompressible, due to numerical complexity. This study overcomes this limitation and studies the influence of air compressibility on phonatory pressures, flow and vocal fold ...

Garneoui, Seifeddine , Keppler, István , Korzenszky, Péter , Talafha, Muath Sultan
Numerical study on the impact of particles filling pattern and screw parameters on the mixing uniformity of wheat grains in a screw mixer

The presence of moisture content in a silo makes the preservation of a grain stock challenging especially when dealing with a large stock. This made it as a major concern for engineers to preserve large crops of grains and avoid huge losses. By installing a screw ins...

Alshabatat, Nabeel T. , Zannon, Mohammad
Natural frequencies analysis of functionally graded circular cylindrical shells

In the present work, a study on natural frequencies of functionally graded materials (FGM) circular cylindrical shells is presented. The FGM is considered to be a mixture of two materials. The volumetric fractions are considered to vary in the radial direction (i.e., through...

Collection's Items (Sorted by Submit Date in Descending order): 1 to 6 of 6