Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Bohus Kysela"'
Publikováno v:
Chemical Engineering Transactions, Vol 74 (2019)
Processes in which mixing plays a crucial role in increasing mass transfer, interfacial surface, and homogenization are frequently and widely used throughout the industry. Agitation of immiscible liquids or solid-liquid suspensions is a frequent oper
Externí odkaz:
https://doaj.org/article/8eff97a89dd44ae48f5b10becacb74eb
Publikováno v:
Journal of Hydrology and Hydromechanics, Vol 65, Iss 2, Pp 105-113 (2017)
A three-dimensional numerical simulation of particle motion in a pipe with a rough bed is presented. The simulation based on the Lattice Boltzmann Method (LBM) employs the hybrid diffuse bounce-back approach to model moving boundaries. The bed of the
Publikováno v:
Chemical Industry and Chemical Engineering Quarterly, Vol 23, Iss 2, Pp 151-160 (2017)
The radial discharge jet from the standard Rushton turbine was investigated by the Laser Doppler Anemometry (LDA) method. Several distances from the impeller blades (in radial direction) were chosen for the measurement of axial profiles: all three ve
Publikováno v:
AIP Conference Proceedings.
The paper presents experimental and numerical investigations of the saltation motion of a large spherical particle in an open channel. The channel bottom was roughed by one layer of glass rods of diameter 6 mm. The plastic spheres of diameter 25.7 mm
Publikováno v:
EPJ Web of Conferences, Vol 143, p 02062 (2017)
The design of agitated tanks depends on operating conditions and processes for that are used for. An important parameter for the scale-up modelling is the dissipation rate of the turbulent kinetic energy. The dissipation rate is commonly assumed to b
Publikováno v:
AIP Conference Proceedings.
The paper describes experimental and numerical investigations of velocity fields around a circular cylinder colliding perpendicularly with a plane wall. The cylinder of the diameter D = 20 mm was moving vertically in a water tank and the motion was r
Autor:
Ivan Fořt, Václav Kopecký, Pavel Ditl, Darina Jasikova, Bohus Kysela, Radek Šulc, Michal Kotek
Publikováno v:
EPJ Web of Conferences, Vol 143, p 02120 (2017)
The hydrodynamics and flow field were measured in an agitated vessel using 2-D Time Resolved Particle Image Velocimetry (2-D TR PIV). The experiments were carried out in a fully baffled cylindrical flat bottom vessel 400 mm in inner diameter agitated
Publikováno v:
EPJ Web of Conferences, Vol 143, p 02063 (2017)
The viscoelastic properties of foods and polymers can be evaluated from flow of the material in capillary with specified dimension and shape. The extrusion rheometer equipped by capillary with rectangular cross-section was used for determination of t
Autor:
Pavel Ditl, Michal Kotek, Bohus Kysela, Ivan Fořt, Radek Šulc, Václav Kopecký, Darina Jasikova
Publikováno v:
EPJ Web of Conferences, Vol 143, p 02121 (2017)
In PIV studies published in the literature focusing on the investigation of the flow field in an agitated vessel the record time is ranging from the tenths and the units of seconds. The aim of this work was to determine minimum record time for PIV me
Autor:
Zdenek Chara, Bohus Kysela, Pavel Vlasak, Theodore E. Simos, George Psihoyios, Ch. Tsitouras, Zacharias Anastassi
Publikováno v:
AIP Conference Proceedings.
Based on an image processing two‐dimensional saltation movements of spherical particles in an open channel were analyzed and the linear and angular velocity components of the individual particles were determined. The experimental data of particle t