Search results
- 1.0559947 - MÚ 2023 RIV US eng J - Journal Article
Kolář, Václav - Šístek, Jakub
Disappearing vortex problem in vortex identification: Non-existence for selected criteria.
Physics of Fluids. Roč. 34, č. 7 (2022), č. článku 071704. ISSN 1070-6631. E-ISSN 1089-7666
Grant - others:AV ČR(CZ) StrategieAV21/1
Program: StrategieAV
Institutional support: RVO:67985840
Keywords : vortex-identification methods * velocity-gradient tensor * decomposition methods
OECD category: Applied mathematics
Impact factor: 4.6, year: 2022
Method of publishing: Limited access
https://doi.org/10.1063/5.0099046
Permanent Link: https://hdl.handle.net/11104/0333068 - 2.0531619 - ÚH 2021 RIV GB eng J - Journal Article
Vašatová, Petra - Filipenská, Monika - Petříček, Radim - Pivokonský, Martin
On the importance of mixing characterization and application in the water treatment process.
Journal of Water Supply Research and Technology. AQUA. Roč. 69, č. 6 (2020), s. 639-646. ISSN 0003-7214. E-ISSN 1365-2087
R&D Projects: GA ČR(CZ) GA18-05007S
Institutional support: RVO:67985874
Keywords : aggregation * flocculation * floc properties * separation * shear rate * velocity gradient
OECD category: Environmental sciences (social aspects to be 5.7)
Impact factor: 1.644, year: 2020
Method of publishing: Limited access
https://iwaponline.com/aqua/article-abstract/doi/10.2166/aqua.2020.033/76281/On-the-importance-of-mixing-characterization-and
Permanent Link: http://hdl.handle.net/11104/0311155 - 3.0519047 - ÚH 2021 RIV SG eng C - Conference Paper (international conference)
Kolář, Václav - Šístek, Jakub
On the local axisymmetry of a vortex.
Proceedings of 16th Asian Congress of Fluid Mechanics. Singapore: Springer Singapore, 2021 - (Venkatakrishnan, L.; Majumdar, S.; Subramanian, G.; Bhat, G.; Dasgupta, R.; Arakeri, J.), s. 175-183. Lecture Notes in Mechanical Engineering. ISBN 978-981-15-5182-6. ISSN 2195-4356.
[Asian Congress of Fluid Mechanics /16./. Bengaluru (IN), 13.12.2019-17.12.2019]
R&D Projects: GA ČR(CZ) GA18-09628S
Institutional support: RVO:67985874 ; RVO:67985840
Keywords : vortex * axisymmetry * velocity-gradient tensor * complex eigenvectors * dual-eigenvectors
OECD category: Fluids and plasma physics (including surface physics); Applied mathematics (MU-W)
https://www.springer.com/gp/book/9789811551826
Permanent Link: http://hdl.handle.net/11104/0304050 - 4.0505896 - ÚH 2020 RIV CH eng J - Journal Article
Guo, Z. - Li, Y. - Skalák, Zdeněk
Regularity criteria of the incompressible Navier-Stokes equations via only one entry of velocity gradient.
Journal of Mathematical Fluid Mechanics. Roč. 21, č. 3 (2019), č. článku 35. ISSN 1422-6928. E-ISSN 1422-6952
R&D Projects: GA ČR(CZ) GA18-09628S
Institutional support: RVO:67985874
Keywords : Navier-Stokes equations * regularity criteria * one entry of velocity gradient
OECD category: Fluids and plasma physics (including surface physics)
Impact factor: 0.970, year: 2019
Method of publishing: Limited access
https://link.springer.com/article/10.1007%2Fs00021-019-0441-6
Permanent Link: http://hdl.handle.net/11104/0297521 - 5.0501006 - ÚH 2020 RIV DE eng J - Journal Article
Šulc, R. - Ditl, P. - Jašíková, D. - Kotek, M. - Kopecký, V. - Kysela, Bohuš
Effect of Particle Image Velocimetry setting parameters on local velocity measurements in an agitated vessel.
Chemical Engineering & Technology. Roč. 42, č. 4 (2019), s. 827-834. ISSN 0930-7516. E-ISSN 1521-4125
R&D Projects: GA ČR GA16-20175S
Grant - others:GA MŠk(CZ) LO1201
Institutional support: RVO:67985874
Keywords : mixing * Rushton turbine * Particle Image Velocimetry * fluctuation velocity * fluctuation velocity gradient
OECD category: Fluids and plasma physics (including surface physics)
Impact factor: 1.543, year: 2019
Method of publishing: Open access
Permanent Link: http://hdl.handle.net/11104/0295656File Download Size Commentary Version Access Šulc, Effect of Particle Image Velocimetry Setting..., 2019.pdf 2 597.4 KB Publisher’s postprint open-access - 6.0498874 - ÚH 2019 RIV CZ cze V - Research Report
Pivokonský, Martin - Vašatová, Petra - Pivokonská, Lenka - Petříček, Radim - Filipenská, Monika
Vliv podmínek flokulace (intenzita míchání a doba zdržení) na tvar a strukturu tvořených agregátů a účinnost jejich separace sedimentací a filtrací.
[The influence of flocculation conditions (global shear rate and time) on the shape and structure of formed aggregates and the efficiency of their separation by sedimentation and filtration.]
Praha: Vodohospodářská společnost Vrchlice - Maleč, a.s., 2018. 20 s.
R&D Projects: GA TA ČR(CZ) TJ01000169
Institutional support: RVO:67985874
Keywords : water treatment * coagulation * flocculation * aggregation * mixing * velocity gradient * filtration * sedimentation
OECD category: Environmental sciences (social aspects to be 5.7)
Permanent Link: http://hdl.handle.net/11104/0291942 - 7.0492234 - ÚH 2019 RIV cze P1 - User Module
Pivokonská, Lenka - Petříček, Radim - Pivokonský, Martin
Poloprovozní flokulační jednotka.
[A pilot-plant flocculation unit.]
2018. Owner: Ústav pro hydrodynamiku AV ČR, v. v. i. Date of the utility model acceptance: 14.08.2018. Utility model number: 31967
R&D Projects: GA TA ČR(CZ) TJ01000169
Institutional support: RVO:67985874
Keywords : water treatment * coagulation * flocculation * aggregation * velocity gradient
OECD category: Environmental sciences (social aspects to be 5.7)
https://isdv.upv.cz/doc/FullFiles/UtilityModels/FullDocuments/FDUM0031/uv031967.pdf
Permanent Link: http://hdl.handle.net/11104/0285787 - 8.0376735 - ÚH 2013 RIV GB eng J - Journal Article
Bubáková, Petra - Pivokonský, Martin
The influence of velocity gradient on properties and filterability of suspension formed during water treatment.
Separation and Purification Technology. Roč. 92, May (2012), s. 161-167. ISSN 1383-5866. E-ISSN 1873-3794.
[European Conference on Fluid-Particle Separation (FPS 2010). Lyon, 05.10.2010-07.10.2010]
R&D Projects: GA ČR GAP105/11/0247
Institutional research plan: CEZ:AV0Z20600510
Keywords : aggregation * fractal dimension * filtration * particle size distribution * velocity gradient
Subject RIV: BK - Fluid Dynamics
Impact factor: 2.894, year: 2012
Permanent Link: http://hdl.handle.net/11104/0209063File Download Size Commentary Version Access Bubáková_Pivokonský_The influence of velocity gradient_2012.pdf 8 875.1 KB Author´s preprint require - 9.0360313 - ÚH 2012 RIV SK eng J - Journal Article
Polášek, Pavel
Influence of velocity gradient on optimisation of the aggregation process and physical properties of formed aggregates. Part 1. Inline high density suspension (IHDS) aggregation process.
Journal of Hydrology and Hydromechanics. Roč. 59, č. 2 (2011), s. 107-117. ISSN 0042-790X. E-ISSN 1338-4333
R&D Projects: GA ČR GA103/07/1016
Institutional research plan: CEZ:AV0Z20600510
Keywords : flocculation optimum * inline high density suspension (IHDS) formation process * properties of aggregates * intensity of agitation * velocity gradient G
Subject RIV: BK - Fluid Dynamics
Impact factor: 0.340, year: 2011
Permanent Link: http://hdl.handle.net/11104/0006481File Download Size Commentary Version Access Polasek, Influence of velocity.pdf 0 597.2 KB Publisher’s postprint open-access - 10.0325910 - ÚH 2009 RIV CZ cze J - Journal Article
Pivokonský, Martin - Polášek, Pavel - Knesl, Bohuslav
Proces vysokorychlostního čiření - moderní technologie úpravy vody.
[High rate clarification – modern technology of water treatment.]
Chemagazín. Roč. 18, č. 2 (2009), s. 8-10. ISSN 1210-7409
R&D Projects: GA ČR GA103/07/1016
Institutional research plan: CEZ:AV0Z20600510
Keywords : agitation * aggregation * high rate clarification * velocity gradient * water treatment
Subject RIV: BK - Fluid Dynamics
Permanent Link: http://hdl.handle.net/11104/0173185