Zobrazeno 1 - 10
of 168
pro vyhledávání: '"Chára Zdeněk"'
Publikováno v:
EPJ Web of Conferences, Vol 299, p 01027 (2024)
Very coarse basalt-water slurry forming fully stratified flow with a sliding bed and producing considerable friction loss was tested in a laboratory pipe. A considerably finer fraction of sand was added in steps to gradually increase the concentratio
Externí odkaz:
https://doaj.org/article/2cfb076cf3084283b0226aeab6f05f90
Publikováno v:
Journal of Hydrology and Hydromechanics, Vol 68, Iss 1, Pp 83-91 (2020)
Sand-water slurry was investigated on an experimental pipe loop of inner diameter D = 100 mm with the horizontal, inclined, and vertical smooth pipe sections. A narrow particle size distribution silica sand of mean diameter 0.87 mm was used. The expe
Externí odkaz:
https://doaj.org/article/7828aa4ec6de4e94b9da4b87f4bf6aaf
Publikováno v:
Journal of Hydrology and Hydromechanics, Vol 67, Iss 2, Pp 113-120 (2019)
For the safe and economical design and operation of freight pipelines it is necessary to know slurry flow behaviour in inclined pipe sections, which often form significant part of pipelines transporting solids. Fine-grained settling slurry was invest
Externí odkaz:
https://doaj.org/article/b23b0c6723704bb7bfb1bd69d1613019
Publikováno v:
Journal of Hydrology and Hydromechanics, Vol 66, Iss 4, Pp 448-456 (2018)
This paper deals with studying of two topics – measuring of velocity profile deformation behind a over-flooded construction and modelling of this velocity profile deformation by computational fluid dynamics (CFD). Numerical simulations with an unst
Externí odkaz:
https://doaj.org/article/b73bd70b4e4f4bafa5f90ac8c3e4cbf6
Publikováno v:
EPJ Web of Conferences, Vol 269, p 01015 (2022)
Mixing of immiscible liquid-liquid system is the crucial process for many branches of industry. The main purpose of this process is to increase mass transfer efficiency in processes occurring in chemical and metallurgical industry. The knowledge of d
Externí odkaz:
https://doaj.org/article/76cd11a169e34ea4946d007b31454433
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
Externí odkaz:
https://doaj.org/article/05c16e297c8f4e13ad648a2890e5024c
Publikováno v:
Chemical Industry and Chemical Engineering Quarterly, Vol 23, Iss 2, Pp 151-160 (2017)
The radial discharge jet from a standard Rushton turbine was investigated by the Laser Doppler Anemometry (LDA) method. Several distances from the impeller blades (in the radial direction) were chosen for the measurement of axial profiles: all three
Externí odkaz:
https://doaj.org/article/eb9d3c9e84d24320b5723de8adb5ab06
Publikováno v:
Journal of Hydrology and Hydromechanics, Vol 62, Iss 3, Pp 241-247 (2014)
The effect of solid concentration and mixture velocity on the flow behaviour, pressure drops, and concentration distribution of coarse particle-water mixtures in horizontal, vertical, and inclined smooth stainless steel pipes of inner diameter D = 10
Externí odkaz:
https://doaj.org/article/f3ab42bfeef54358be3d3ea1eb40a585
Publikováno v:
EPJ Web of Conferences, Vol 180, p 02120 (2018)
The effect of slurry velocity and mean concentration of heterogeneous particle-water mixture on flow behaviour and structure in the turbulent regime was studied in horizontal and inclined pipe sections of inner diameter D = 100 mm. The stratified flo
Externí odkaz:
https://doaj.org/article/4d2eb0bf745443e8a01a7f9b5e610dc1
Autor:
Lukerchenko Nikolay, Piatsevich Siarhei, Chara Zdenek, Vlasak Pavel, Chára Zdeněk, Vlasák Pavel
Publikováno v:
Journal of Hydrology and Hydromechanics, Vol 57, Iss 2, Pp 100-112 (2009)
Externí odkaz:
https://doaj.org/article/b75bb5ce4e8a49669e80503e42358cfb