Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Yaroslav Ignatenko"'
Publikováno v:
Fluids, Vol 9, Iss 3, p 65 (2024)
A numerical simulation of the Herschel–Bulkley laminar steady state shear flow around a stationary particle located on a sedimentation layer was carried out. The surface of the sedimentation layer was formed by hemispheres of the same radius as the
Externí odkaz:
https://doaj.org/article/579346f92bba44aebc8260456ee2ede3
Autor:
Andrey Gavrilov, Yaroslav Ignatenko
Publikováno v:
Fluids, Vol 8, Iss 10, p 280 (2023)
A fully developed turbulent flow in a concentric annulus, Re =10,000, ri/ro=0.5, with an inner rotating cylinder in the velocity range N=Uω/Ub=0÷4, is studied via a large-eddy simulation. Also, for comparison, simulations by steady-state, unstatiou
Externí odkaz:
https://doaj.org/article/ace12de375064e4da5018e5420e28058
Publikováno v:
Volume 10: Petroleum Technology.
The paper presents the results of an investigation into drilling mud flow with cuttings in a vertical well. The drilling mud rheology was described with the Herschel-Bulkley model. The axial Reynolds number was around 1000, the flow regime changing t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ac58f80a5331f949be5480e03839ecc
https://doi.org/10.1115/omae2021-62699
https://doi.org/10.1115/omae2021-62699
Publikováno v:
Volume 11: Petroleum Technology.
Transient three-dimensional flow simulations of power–law fluid in a long axisymmetric annular channel considering 0.5 diameter ratio were performed. An in–house CFD code considering URANS (Unsteady Reynolds Averaged Navier–Stokes), 2D RANS (st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::040b84fd548b87c74ad14111c9990c73
https://doi.org/10.1115/omae2020-19108
https://doi.org/10.1115/omae2020-19108
Publikováno v:
Volume 8: Polar and Arctic Sciences and Technology; Petroleum Technology.
An Eulerian mixture model of the two-phase flow was used for cuttings transport simulation. The model was tested using experimental data for particles transport in pipes. Three types of problem statements were analyzed: steady-state flow, non-station
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08bd54083fa46b69da9f29be4d131c42
https://doi.org/10.1115/omae2019-95228
https://doi.org/10.1115/omae2019-95228
Publikováno v:
Volume 8: Polar and Arctic Sciences and Technology; Petroleum Technology.
The paper presents the results of modeling the steady-state flow of drilling fluid with cuttings in an annulus for the flow regimes typical for horizontal drilling. The studied parameters include effects like fluid rheology, drillstring rotation and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d45404773443ca75f184edf6482048ba
https://doi.org/10.1115/omae2018-77266
https://doi.org/10.1115/omae2018-77266
Autor:
Yaroslav Ignatenko, Andrey Gavrilov, Oleg Bocharov, A. V. Shebelev, Anatoly Dekterev, Roland May
Publikováno v:
AIP Conference Proceedings.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6c550b83f49973d1adce333e65a6650
https://doi.org/10.1063/1.5027356
https://doi.org/10.1063/1.5027356
Publikováno v:
Volume 8: Polar and Arctic Sciences and Technology; Petroleum Technology.
For a particle on a wall or cuttings bed in a multiphase flow in confined geometries a condition for onset and lift-off is very important. In this case, a fundamental problem of hydrodynamic forces and torque acting on a particle moving near and on t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::252ac5d3919d63628a2cc06ecbe4da28
https://doi.org/10.1115/omae2017-61131
https://doi.org/10.1115/omae2017-61131
Publikováno v:
EPJ Web of Conferences, Vol 196, p 00011 (2019)
The current study is devoted to simulating cuttings transport by drilling fluid through a horizontal section of borehole with an annular cross section. Drill pipe rotates in fixed eccentric position. Steady-state flow is considered. Cuttings are rigi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b3e36579dd53106ddcb29197543af723
https://doi.org/10.1051/epjconf/201919600011
https://doi.org/10.1051/epjconf/201919600011
Publikováno v:
Journal of Physics: Conference Series. 894:012037
Solids transport is a major issue in high angle wells. Bed-load forms by sediment while transport and accompanied by intermittent contact with stream-bed by rolling, sliding and bouncing. The study presents the results of a numerical simulation of a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::61446c380670920395c7f77d56cc353d
https://doi.org/10.1088/1742-6596/894/1/012037
https://doi.org/10.1088/1742-6596/894/1/012037