Zobrazeno 1 - 10
of 531
pro vyhledávání: '"Zonal flow (plasma)"'
Publikováno v:
SPE Production & Operations. 36:659-668
Summary Accurate zonal flow rate determination is necessary for better reservoir behavior understanding and for making important decisions that can improve well productivity. Knowledge of the capabilities of different reservoir zones in the same well
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::393a0badb204a6b6b17d082743b080c5
https://doi.org/10.2118/205021-pa
https://doi.org/10.2118/205021-pa
Publikováno v:
Experimental Techniques, 46
Many common techniques for flow measurement, such as Particle Image Velocimetry (PIV) or Ultrasonic Doppler Velocimetry (UDV), rely on the presence of reflectors in the fluid. These methods fail to operate when e.g centrifugal or gravitational accele
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a9a87cf4b20ca7d618d91b9049bd310e
Autor:
Marta Net, J. Sánchez Umbría
Publikováno v:
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Universitat Politècnica de Catalunya (UPC)
The aim of this study is to determine through numerical simulations the extent and robustness of the three-dimensional torsional dynamics of the thermal convection in rotating spherical fluids at very low Prandtl numbers. It is known that the kinetic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::408b1e9940dc229ec87e0cfebf955829
https://hdl.handle.net/2117/357049
https://hdl.handle.net/2117/357049
General nonlinear equations describing reversed shear Alfvén eigenmode (RSAE) self-modulation via zero-frequency zonal structure (ZFZS) generation are derived using nonlinear gyrokinetic theory, which are then applied to study the spontaneous ZFZS e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1922ca0474be613d32953fda67d2c2ed
http://arxiv.org/abs/2107.02996
http://arxiv.org/abs/2107.02996
Autor:
Alexander Melnikov
Publikováno v:
Symmetry, Vol 13, Iss 1367, p 1367 (2021)
The overview discusses development of the unique fusion plasma diagnostics—Heavy Ion Beam Probing (HIBP) in application to toroidal magnetic plasma devices. The basis of the HIBP measurements of the plasma electric potential and processing of exper
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7c795719f0055d697f85112b28178c9e
https://www.mdpi.com/2073-8994/13/8/1367
https://www.mdpi.com/2073-8994/13/8/1367
Autor:
Umer Rehman
Publikováno v:
Journal of Fusion Energy. 40
This paper presents a model for zonal flows (ZFs) generation based on a Chew-Goldberger-Low double equations in the regime of finite banana width (FBW) length-scale creating polarization shielding. The coupled equation is used to investigate the inte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b452e2bc717bc3b31323cb94a2ba0fcb
https://doi.org/10.1007/s10894-021-00307-3
https://doi.org/10.1007/s10894-021-00307-3
Autor:
T. D. Kaladze, O. Özcan, A. Yeşil, L. V. Tsamalashvili, D. T. Kaladze, M. Inc, S. Sağir, K. Kurt
Publikováno v:
Zeitschrift für angewandte Mathematik und Physik. 72
Taking into account the action of inhomogeneous zonal wind (shear flow), nonlinear dynamic equations describing the propagation of planetary ULF magnetized Rossby waves in the ionospheric D-, E-, and F-layers are obtained and investigated. The influe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f72ac5f1f7191db685a5b04d5ca79bd0
https://doi.org/10.1007/s00033-021-01556-0
https://doi.org/10.1007/s00033-021-01556-0
Publikováno v:
Physical Review E. 103
Gyrokinetic simulations of turbulence are fundamental to understanding and predicting particle and energy loss in magnetic fusion devices. Previous works have used model collision operators with approximate field-particle terms of unknown accuracy an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5cdd5ee84c75f7eec26b8726e521b79f
https://doi.org/10.1103/physreve.103.l051202
https://doi.org/10.1103/physreve.103.l051202
Nonlinear electromagnetic interplay between fast ions and ion-temperature-gradient plasma turbulence
Autor:
Emanuele Poli, I. Novikau, F. Vannini, Frank Jenko, Nicola Bonanomi, R. Bilato, A. Banon Navarro, Tobias Görler, A. Di Siena, Alessandro Biancalani
Publikováno v:
Journal of Plasma Physics
In strong electromagnetic regimes, gyrokinetic simulations have linked a substantial ion-scale turbulence stabilization to the presence of supra-thermal particles, capturing qualitatively well the experimental observations in different devices worldw
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::755656f713f26ade04b68ffec1fab3b2
https://doi.org/10.1017/s0022377821000362
https://doi.org/10.1017/s0022377821000362
Publikováno v:
Journal of Fluid Mechanics
Journal of Fluid Mechanics, Cambridge University Press (CUP), 2021, 923, ⟨10.1017/jfm.2021.574⟩
Journal of Fluid Mechanics, 2021, 923, ⟨10.1017/jfm.2021.574⟩
Journal of Fluid Mechanics, Cambridge University Press (CUP), 2021, 923, ⟨10.1017/jfm.2021.574⟩
Journal of Fluid Mechanics, 2021, 923, ⟨10.1017/jfm.2021.574⟩
International audience; A cylinder undergoes precession when it rotates around its axis and this axis itself rotates around another direction. In a precessing cylinder fullof fluid, a steady and axisymmetric component of the azimuthal flow is general
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2cb2cbbe79bfc677d5a16a2a763c4049
http://arxiv.org/abs/2103.14889
http://arxiv.org/abs/2103.14889