Literatura científica selecionada sobre o tema "Transport de turbulence"
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Artigos de revistas sobre o assunto "Transport de turbulence"
Souza, José Francisco Almeida de, José Luiz Lima de Azevedo, Leopoldo Rota de Oliveira, Ivan Dias Soares e Maurício Magalhães Mata. "TURBULENCE MODELING IN GEOPHYSICAL FLOWS – PART I – FIRST-ORDER TURBULENT CLOSURE MODELING". Revista Brasileira de Geofísica 32, n.º 1 (1 de março de 2014): 31. http://dx.doi.org/10.22564/rbgf.v32i1.395.
Texto completo da fonteKawata, Takuya, e Takahiro Tsukahara. "Spectral Analysis on Transport Budgets of Turbulent Heat Fluxes in Plane Couette Turbulence". Energies 15, n.º 14 (20 de julho de 2022): 5258. http://dx.doi.org/10.3390/en15145258.
Texto completo da fonteWang, B. B., G. P. Zank, L. Adhikari e L. L. Zhao. "On the Conservation of Turbulence Energy in Turbulence Transport Models". Astrophysical Journal 928, n.º 2 (1 de abril de 2022): 176. http://dx.doi.org/10.3847/1538-4357/ac596e.
Texto completo da fonteTakuto, Inaba, Nagata Kouji, Sakai Yasuhiko, Suzuki Hiroyuki, Terashima Osamu e Suzuki Hiroki. "1065 PRODUCTION AND TRANSPORT OF TURBULENT KINETIC ENERGY IN FRACTAL-GENERATED TURBULENCE". Proceedings of the International Conference on Jets, Wakes and Separated Flows (ICJWSF) 2013.4 (2013): _1065–1_—_1065–4_. http://dx.doi.org/10.1299/jsmeicjwsf.2013.4._1065-1_.
Texto completo da fonteOkiy, Karinate Valentine. "A Comparative Analysis of Turbulence Models Utilised for the Prediction of Turbulent Airflow through a Sudden Expansion". International Journal of Engineering Research in Africa 16 (junho de 2015): 64–78. http://dx.doi.org/10.4028/www.scientific.net/jera.16.64.
Texto completo da fonteTalon, Suzanne. "Rotational Transport Processes". Symposium - International Astronomical Union 215 (2004): 336–45. http://dx.doi.org/10.1017/s0074180900195841.
Texto completo da fonteKohli, Atul, e David G. Bogard. "Turbulent Transport in Film Cooling Flows". Journal of Heat Transfer 127, n.º 5 (1 de maio de 2005): 513–20. http://dx.doi.org/10.1115/1.1865221.
Texto completo da fonteBalbus, Steven A., e John F. Hawley. "Instability, Turbulence, and Enhanced Transport in Accretion Disks". International Astronomical Union Colloquium 163 (1997): 90–100. http://dx.doi.org/10.1017/s0252921100042536.
Texto completo da fonteGiacomin, M., e P. Ricci. "Turbulent transport regimes in the tokamak boundary and operational limits". Physics of Plasmas 29, n.º 6 (junho de 2022): 062303. http://dx.doi.org/10.1063/5.0090541.
Texto completo da fonteDong, G., e Z. Lin. "Role of wave-particle resonance in turbulent transport in toroidal plasmas". Plasma Physics and Controlled Fusion 64, n.º 3 (21 de janeiro de 2022): 035005. http://dx.doi.org/10.1088/1361-6587/ac4275.
Texto completo da fonteTeses / dissertações sobre o assunto "Transport de turbulence"
Irvine, Mark Rankin. "Turbulence and turbulent transport above and within coniferous forests". Thesis, University of Liverpool, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240324.
Texto completo da fonteNewton, Andrew P. L. "Transport in sheared turbulence". Thesis, University of Sheffield, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.531179.
Texto completo da fonteLaenen, François. "Modulation de mélange, transport et turbulence dans des suspensions solides : étude et modélisation". Thesis, Université Côte d'Azur (ComUE), 2017. http://www.theses.fr/2017AZUR4010/document.
Texto completo da fonteThe transport of particles by turbulent flows is ubiquitous in nature and industry. It occurs in planet formation, plankton dynamics and combustion in engines. For the dispersion of atmospheric pollutants, traditional predictive models based on eddy diffusivity cannot accurately reproduce high concentration fluctuations, which are of primal importance for ecological and health issues. The first part of this thesis relates to the dispersion by turbulence of tracers continuously emitted from a point source. Mass fluctuations are characterized as a function of the distance from the source and of the observation scale. The combination of various physical mixing processes limits the use of fractal geometric tools. An alternative approach is proposed, allowing to interpret mass fluctuations in terms of the various regimes of pair separation in turbulent flows. The second part concerns particles with a finite and possibly large inertia, whose dispersion in velocity requires developing efficient modelling techniques. A novel numerical method is proposed to express inertial particles distribution in the position-velocity phase space. Its convergence is validated by comparison to Lagrangian measurements. This method is then used to describe the modulation of two-dimensional turbulence by large-Stokes-number heavy particles. At high inertia, the effect is found to be analogous to an effective large-scale friction. At small Stokes numbers, kinetic energy spectrum and nonlinear transfers are shown to be modified in a non-trivial way which relates to the development of instabilities at vortices boundaries
Briard, Antoine. "Modélisation du transport en turbulence homogène". Thesis, Paris 6, 2017. http://www.theses.fr/2017PA066201/document.
Texto completo da fonteModelling is essential to understand and reproduce the dominant physical mechanisms occurring in natural turbulent flows such as atmospheric and oceanic ones. Indeed, the dynamics of geophysical flows results of multiple complex processes interacting with each others, at various scales, intensities, and on different characteristic times. The fine description of such flows is currently out of reach of direct numerical simulations, notably because of Reynolds numbers limitations. Consequently, we address in this thesis the modelling of homogeneous turbulence, using the spectral formalism of the eddy-damped quasi-normal Markovian (EDQNM) approximation. This first allows us to obtain results rapidly in terms of computational resources at very large Reynolds numbers, and thus to investigate separately some of the fundamental mechanisms at stake in natural turbulent flows, namely shear, mean temperature gradient, stratification, helicity, and combinations of these processes. In this framework, a two-step approach is considered: first, EDQNM is used to close the non-linear terms in the second-order moments equations, and anisotropy is then modelled through spherically-averaged tensors. This methodology is applied to the various configurations mentioned above, permits to propose new theoretical results, and to assess them numerically at large Reynolds numbers. Among the most important findings, we focused on (i) the prediction of the decay and growth laws of crucial one-point statistics such as the kinetic energy, the scalar variance, and helicity; (ii) the determination of spectral scalings; and (iii) the scale by scale distribution of anisotropy
Raus, David. "Transport sédimentaire sur rugosités immobiles : de l'hydrodynamique locale à la morphodynamique". Phd thesis, Toulouse, INPT, 2018. http://oatao.univ-toulouse.fr/23587/1/Raus_David.pdf.
Texto completo da fonteJermyn, Adam Sean. "Turbulence and transport in stars and planets". Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/278021.
Texto completo da fonteDonnel, Peter. "Impurity transport in tokamak plasmas : gyrokinetic study of neoclassical and turbulent transport". Thesis, Aix-Marseille, 2018. http://www.theses.fr/2018AIXM0485/document.
Texto completo da fonteImpurity transport is an issue of utmost importance for tokamaks. Indeed high-Z materials are only partially ionized in the plasma core, so that they can lead to prohibitive radiative losses even at low concentrations, and impact dramatically plasma performance and stability. On-axis accumulation of tungsten has been widely observed in tokamaks.While the very core impurity peaking is generally attributed to neoclassical effects, turbulent transport could well dominate in the gradient region at ITER relevant collisionality. Up to recently, first principles simulations of corresponding fluxes were performed with different dedicated codes, implicitly assuming that both transport channels are separable and therefore additive. The validity of this assumption is questionned. Simulations obtained with the gyrokinetic code GYSELA have shown clear evidences of a neoclassical-turbulence synergy for impurity transport and allowed the identification of a mechanism that underly this synergy.An analytical work allows to compute the level and the structure of the axisymmetric part of the electric potential knowing the turbulence intensity. Two mechanisms are found for the generation of poloidal asymmetries of the electric potential: flow compressibility and the ballooning of the turbulence. A new prediction for the neoclassical impurity flux in presence of large poloidal asymmetries and pressure anisotropies has been derived. A fair agreement has been found between the new theoretical prediction for neoclassical impurity flux and the results of a GYSELA simulation displaying large poloidal asymmetries and pressure anisotropies induced by the presence of turbulence
Cohet, Romain. "Transport des rayons cosmiques en turbulence magnétohydrodynamique". Thesis, Montpellier, 2015. http://www.theses.fr/2015MONTS051/document.
Texto completo da fonteIn this thesis, we study the transport properties of high energy charged particles in turbulent electromagnetic fields.These fields were generated by using the magnetohydrodynamic (MHD) code RAMSES, which solve the compressible ideal MHD equations. We have developed a module for generating the MHD turbulence, by using a large scale forcing technique. The MHD equations induce a cascading of the energy from large scales to small ones, developing an energy spectrum which follows a power law, called the inertial range.We have developed a module for computing the charged particle trajectories once the turbulent spectrum is established. By injecting the particles to energy such as the inverse of the particle Larmor radius corresponds to a mode in the inertial range of the Fourier spectrum, we have highlighted systematic effects related to the power law spectrum. This method showed that the mean free path is independent of the particules energy until the Larmor radius takes values close to the turbulence coherence scale. The dependence of the mean free path with the alfvénic Mach number produced a power law.We have also developed a technique to measure the anisotropy effect of the MHD turbulence in the cosmic rays transport properties through the calculation of local magnetic fields. This study has shown an effect on the pitch angle scattering coefficient, which confirmed the assumption that the particles are more sensitive to changes in small scales fluctuations
黎敦楠 e Tun-nam Lai. "Turbulent transport of airborne pollutant near a low hill". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2002. http://hub.hku.hk/bib/B31227491.
Texto completo da fonteTeaca, Bogdan. "Numerical simulations of transport processes in magnetohydrodynamic turbulence". Doctoral thesis, Universite Libre de Bruxelles, 2010. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210082.
Texto completo da fonteL’objectif principal de cette thèse est d’analyser le transport d’énergie inter-échelles en utilisant une simulation numérique directe d’un écoulement turbulent MHD. Les propriétés de localité du transport de l’énergie entre les échelles pour un écoulement anisotropique ou isotropique, généré par la présence d’un champ magnétique constant, sont renforcées. Un objectif secondaire est d’établir un cadre de travail pour l’étude du transport de particules test chargées dans un champ électromagnétique turbu-lent, i.e. généré par le mouvement d’un fluide conducteur, qui possède des structures à plusieurs ordres de grandeur. La structure de la thèse est présentée ci-dessous.
Dans la première partie, composée des deux premiers chapitres, l’auteur présente les notions de turbu-lences, aussi bien hydrodynamiques que MHD. Ces deux chapitres sont des synthèses.
La deuxième partie est la principale source de nouveaux résultats. Le chapitre 3 présente les méthodes numériques pour la résolution des équations, les méthodes pseudo-spectrales. Un nouveau type de force est introduit, imposant un niveau de dissipation pour tous les invariants. Dans le chapitre 4, il est effectué une analyse du transfert d'énergie entre ordres de grandeur pour les turbulences MHD. Pour explorer ces transferts d'énergie, le domaine spectral est décomposé en une série de coques de même nombre d'onde. Le transfert moyen d'énergie entre ces coques est analysé. Les transferts d'énergie s'avèrent être surtout locaux en ordre de grandeur, alors qu'une contribution non locale existe due à la force. En présence d'un champ magnétique, l'écoulement développe une direction préférentielle, une anisotropie, où une idée nouvelle de décomposition de l'espace spectral en structures annulaires est présentée. Utilisant cette décomposition annulaire on trouve que le transfert entre anneaux est local, surtout dans les anneaux de direction perpendiculaire au champ magnétique. Pour les turbulences isotropiques, dans le chapitre 5, la localité des flux d'énergie est explorée par le biais de fonctions de localité. Dans le cas de la turbulence MHD, nous avons un comportement non local plus prononcé.
La dernière partie, les chapitres 6 et 7, présente le formalisme de suivi des trajectoires de particules chargées évoluant dans un champ électromagnétique turbulent. L'influence de la méthode d'interpola-tion du solveur de particules est étudiée avant la présentation des concepts liés au transport de particu-les et aux régimes de diffusion. L'adiabatisme du mouvement des particules chargées est discuté et le transport de particules chargées dans un champ magnétique turbulent est montré en exemple.
Doctorat en sciences, Spécialisation physique
info:eu-repo/semantics/nonPublished
Livros sobre o assunto "Transport de turbulence"
Sadayoshi, Tō, ed. Turbulence and transport phenomena. [Kyoto]: Kyōto Daigaku Sūri Kaiseki Kenkyūjo, 2007.
Encontre o texto completo da fonteLyn, Dennis A. Turbulence and turbulent transport in sediment-laden open-channel flows. Pasadena, Calif: California Institute of Technology, Division of Engineering and Applied Science, W.M. Keck Laboratory of Hydraulics and Water Resources, 1986.
Encontre o texto completo da fonteBenocci, C. Modelling of turbulent heat transport - a state-of-the-art. Rhode Saint Genese, Belgium: von Karman Institute for Fluid Dynamics, 1991.
Encontre o texto completo da fonteRubinstein, Robert. Transport coefficients in weakly compressible turbulence. Hampton, Va: National Aeronautics Space Administration, Langley Research Center, 1996.
Encontre o texto completo da fonteM, Redondo J., Staquet Ch, Koch M e European Geophysical Society, eds. I. Turbulence, diffusion, transport and mixing. Oxford: Pergamon, 2001.
Encontre o texto completo da fonteLesieur, Marcel. Turbulence in fluids. 3a ed. Dordrecht: Kluwer Academic Publishers, 1997.
Encontre o texto completo da fonteTurbulence in fluids. Dordrecht: Kluwer, 1997.
Encontre o texto completo da fonteTardu, Sedat. Transport and Coherent Structures in Wall Turbulence. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2014. http://dx.doi.org/10.1002/9781118576663.
Texto completo da fonteJ, Clifford N., French J. R e Hardisty J. 1955-, eds. Turbulence: Perspectives on flow and sediment transport. Chichester: Wiley, 1993.
Encontre o texto completo da fonteS, Potgieter M., COSPAR Scientific Assembly e COSPAR Scientific Commission D, eds. Heliospheric cosmic ray transport, modulation and turbulence. Kidlington, Oxford: Published for the Committee on Space Research [by] Elsevier, 2005.
Encontre o texto completo da fonteCapítulos de livros sobre o assunto "Transport de turbulence"
Sanjou, Michio. "Turbulence Transport". In Turbulence in Open Channels and River Flows, 129–39. Boca Raton: CRC Press, 2022. http://dx.doi.org/10.1201/9781003112198-6.
Texto completo da fonteChien, Ning, e Zhaohui Wan. "Turbulence". In Mechanics of Sediment Transport, 115–52. Reston, VA: American Society of Civil Engineers, 1999. http://dx.doi.org/10.1061/9780784404003.ch04.
Texto completo da fonteTsinober, Arkady. "Nonlocality in Turbulence". In Sedimentation and Sediment Transport, 11–22. Dordrecht: Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-017-0347-5_2.
Texto completo da fonteJovanović, Jovan. "Turbulent transport". In The Statistical Dynamics of Turbulence, 109–19. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-662-10411-8_5.
Texto completo da fonteMiyamoto, Kenro. "Plasma Transport by Turbulence". In Plasma Physics for Controlled Fusion, 285–325. Berlin, Heidelberg: Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-49781-4_13.
Texto completo da fonteYokoi, Nobumitsu. "Turbulence, Transport and Reconnection". In Topics in Magnetohydrodynamic Topology, Reconnection and Stability Theory, 177–265. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-16343-3_6.
Texto completo da fonteTardu, Sedat. "Transport Phenomena in Wall Turbulence". In Transport and Coherent Structures in Wall Turbulence, 55–128. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2014. http://dx.doi.org/10.1002/9781118576663.ch2.
Texto completo da fonteBakunin, Oleg G. "Two-Dimensional Turbulence and Transport". In Chaotic Flows, 249–64. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-20350-3_15.
Texto completo da fonteClercx, Herman J. H. "Transport Phenomena in Rotating Turbulence". In Mixing and Dispersion in Flows Dominated by Rotation and Buoyancy, 181–218. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-66887-1_7.
Texto completo da fonteWoyczyński, Wojbor A. "Passive tracer transport in Burgers' and related flows". In Burgers-KPZ Turbulence, 203–70. Berlin, Heidelberg: Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/bfb0093114.
Texto completo da fonteTrabalhos de conferências sobre o assunto "Transport de turbulence"
Caldas, I. L., F. A. Marcus, A. M. Batista, R. L. Viana, S. R. Lopes, M. V. A. P. Heller, Z. O. Guimarães-Filho, P. J. Morrison e W. Horton. "Turbulence Induced Transport in Tokamaks". In PLASMA AND FUSION SCIENCE: 16th IAEA Technical Meeting on Research using Small Fusion Devices; XI Latin American Workshop on Plasma Physics. AIP, 2006. http://dx.doi.org/10.1063/1.2405962.
Texto completo da fonteHorton, W., J. H. Kim, E. Asp, T. Hoang, T. H. Watanabe, H. Sugama e Sadruddin Benkadda. "Drift Wave Turbulence". In TURBULENT TRANSPORT IN FUSION PLASMAS: First ITER International Summer School. AIP, 2008. http://dx.doi.org/10.1063/1.2939032.
Texto completo da fonteBieber, John W., e William H. Matthaeus. "Particle transport from a turbulence perspective". In Particle acceleration in cosmic plasmas. AIP, 1992. http://dx.doi.org/10.1063/1.42760.
Texto completo da fonteTruong, H. V., John Craig Wells e Gretar Tryggvason. "TURBULENCE SIMULATION FOR BEDLOAD SEDIMENT TRANSPORT". In Sixth International Symposium on Turbulence and Shear Flow Phenomena. Connecticut: Begellhouse, 2009. http://dx.doi.org/10.1615/tsfp6.1380.
Texto completo da fonteGarbet, X., e Sadruddin Benkadda. "Turbulence scaling laws and transport models". In TURBULENT TRANSPORT IN FUSION PLASMAS: First ITER International Summer School. AIP, 2008. http://dx.doi.org/10.1063/1.2939038.
Texto completo da fonteAyed, H., J. Chahed e V. Roig. "First and second order modelling of turbulent scalar transport in homogeneous turbulence". In Turbulence, Heat and Mass Transfer 5. Proceedings of the International Symposium on Turbulence, Heat and Mass Transfer. New York: Begellhouse, 2006. http://dx.doi.org/10.1615/ichmt.2006.turbulheatmasstransf.730.
Texto completo da fonteYan, Huirong, e Alex Lazarian. "Perpendicular transport of cosmic rays in turbulence". In 2012 IEEE 39th International Conference on Plasma Sciences (ICOPS). IEEE, 2012. http://dx.doi.org/10.1109/plasma.2012.6383522.
Texto completo da fonteBanerjee, Sanjoy. "TURBULENCE STRUCTURE AND TRANSPORT MECHANISMS AT INTERFACES". In International Heat Transfer Conference 9. Connecticut: Begellhouse, 1990. http://dx.doi.org/10.1615/ihtc9.2030.
Texto completo da fonteKahre, L. E., N. N. Jetha e G. P. Zank. "Investigation of turbulence transport in the heliosphere". In SOLAR WIND 13: Proceedings of the Thirteenth International Solar Wind Conference. AIP, 2013. http://dx.doi.org/10.1063/1.4811022.
Texto completo da fonteLee, W. W., S. Ethier, R. Ganesh, R. Kolesnokov, W. X. Wang, Olivier Sauter, Xavier Garbet e Elio Sindoni. "Multiscale Turbulence Simulation and Steady State Transport". In THEORY OF FUSION PLASMAS. AIP, 2008. http://dx.doi.org/10.1063/1.3033697.
Texto completo da fonteRelatórios de organizações sobre o assunto "Transport de turbulence"
Linn, R. R., T. T. Clark, F. H. Harlow e L. Turner. Turbulence transport with nonlocal interactions. Office of Scientific and Technical Information (OSTI), março de 1998. http://dx.doi.org/10.2172/645494.
Texto completo da fonteBesnard, D., F. Harlow, R. Rauenzahn e C. Zemach. Spectral transport model for turbulence. Office of Scientific and Technical Information (OSTI), julho de 1990. http://dx.doi.org/10.2172/6807135.
Texto completo da fonteGuttenfelder, W., S. M. Kaye, W. M. Nevins, E. Wang, R. E. Bell, G. W. Hammett, B. P. LeBlanc e D. R. Mikkelsen. Electromagnetic Transport From Microtearing Mode Turbulence. Office of Scientific and Technical Information (OSTI), março de 2011. http://dx.doi.org/10.2172/1010969.
Texto completo da fonteSpragins, Cisse White. Electrostatic turbulence and transport in the RFP edge. Office of Scientific and Technical Information (OSTI), maio de 1992. http://dx.doi.org/10.2172/10148846.
Texto completo da fonteSpragins, C. W. Electrostatic turbulence and transport in the RFP edge. Office of Scientific and Technical Information (OSTI), maio de 1992. http://dx.doi.org/10.2172/5187901.
Texto completo da fonteDiamond, Patrick H. Gyrokinetics Simulation of Energetic Particle Turbulence and Transport. Office of Scientific and Technical Information (OSTI), setembro de 2011. http://dx.doi.org/10.2172/1024908.
Texto completo da fonteBesnard, D., F. Harlow, R. Rauenzahn e C. Zemach. Turbulence transport equations for variable-density turbulence and their relationship to two-field models. Office of Scientific and Technical Information (OSTI), junho de 1992. http://dx.doi.org/10.2172/7271399.
Texto completo da fonteCloutman, L. D. Compressible turbulence transport equations for generalized second order closure. Office of Scientific and Technical Information (OSTI), maio de 1999. http://dx.doi.org/10.2172/9097.
Texto completo da fonteProf. Sergi Krasheninnikov. Edge, Sol, and Diverter Plasma Turbulence and Macroscopic Transport. Office of Scientific and Technical Information (OSTI), abril de 2005. http://dx.doi.org/10.2172/841026.
Texto completo da fonteT.S. Hahm, P.H. Diamond, Z. Lin, K. Itoh e S.-I. Itoh. Turbulence Spreading into Linearly Stable Zone and Transport Scaling. Office of Scientific and Technical Information (OSTI), outubro de 2003. http://dx.doi.org/10.2172/820109.
Texto completo da fonte