Topology and transport - Revision history

Admin: Reverted edits by Otihizuv (Talk) to last revision by Admin

2010-11-24T11:21:22Z

Reverted edits by Otihizuv (Talk) to last revision by Admin

Otihizuv at 00:38, 24 November 2010

2010-11-24T00:38:46Z

Admin at 14:47, 29 January 2010

2010-01-29T14:47:30Z

Admin: /* Transitions to improved confinement regimes */

2010-01-29T14:41:45Z

Transitions to improved confinement regimes

← Older revision		Revision as of 16:41, 29 January 2010
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	Recent experimental results in the TJ-II stellarator prove the existence of long-distance correlations		Recent experimental results in the TJ-II stellarator prove the existence of long-distance correlations
	in the electrostatic potential around the bifurcation point for the emergence of the plasma edge sheared		in the electrostatic potential around the bifurcation point for the emergence of the plasma edge sheared
	flow layer <ref>[http://prl.aps.org/abstract/PRL/v100/i21/e215003 M. A. Pedrosa et al., Phys. Rev. Lett. 100, 215003 (2008)]</ref>. Trying		flow layer <ref>[http://prl.aps.org/abstract/PRL/v100/i21/e215003 M. A. Pedrosa et al., Phys. Rev. Lett. '''100''', 215003 (2008)]</ref>. Trying
	to understand these results from a theoretical point of view, we have formulated a phenomenological model		to understand these results from a theoretical point of view, we have formulated a phenomenological model
	<ref>[http://www.iop.org/EJ/abstract/-search=68892777.7/0741-3335/51/6/065007 I. Calvo et al., Plasma Phys. Control. Fusion 51 065007 (2009)]</ref> based on the		<ref>[http://www.iop.org/EJ/abstract/-search=68892777.7/0741-3335/51/6/065007 I. Calvo et al., Plasma Phys. Control. Fusion '''51''' 065007 (2009)]</ref> based on the
	paradigm of flow shear generation by Reynolds stress and turbulence supression by		paradigm of flow shear generation by Reynolds stress and turbulence supression by
	shear. We suggest that the experimental results might be an indirect evidence of the development of poloidally asymmetric zonal flows.		shear. We suggest that the experimental results might be an indirect evidence of the development of poloidally asymmetric zonal flows.


	== References ==		== References ==
	<references />		<references />

Admin: /* Topology of flows */

2010-01-29T14:41:01Z

Topology of flows

← Older revision		Revision as of 16:41, 29 January 2010
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	and during the next three years, we plan to study the problem in pressure-gradient-driven turbulence,		and during the next three years, we plan to study the problem in pressure-gradient-driven turbulence,
	with a possible extension to gyrokinetic models. For this we will make use of Computational		with a possible extension to gyrokinetic models. For this we will make use of Computational
	Homology. An important tool will be the software developed by the ~~Computational Homology Project~~		Homology. An important tool will be the software developed by the [http://chomp.rutgers.edu Computational Homology Project (CHomP)] which, in particular, computes some topological invariants
	~~(CHomP, see~~ http://chomp.rutgers.edu) which, in particular, computes some topological invariants
	(the Betti numbers) of three-dimensional spaces. We will investigate the possibility of developing or		(the Betti numbers) of three-dimensional spaces. We will investigate the possibility of developing or
	using other tools which allow to improve the numerical resolution of the calculations.		using other tools which allow to improve the numerical resolution of the calculations.

	== Non-diffusive transport ==		== Non-diffusive transport ==

Icalvo: moved Topology and transport (research project funded by the Ministerio de Ciencia e Innovación) to Topology and transport

2010-01-27T12:32:17Z

moved Topology and transport (research project funded by the Ministerio de Ciencia e Innovación) to Topology and transport

← Older revision	Revision as of 14:32, 27 January 2010
(No difference)

Icalvo at 12:24, 27 January 2010

2010-01-27T12:24:06Z

← Older revision		Revision as of 14:24, 27 January 2010
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	* Raúl Sánchez, Oak Ridge National Laboratory, Oak Ridge, Tennessee & Universidad Carlos III, Madrid.		* Raúl Sánchez, Oak Ridge National Laboratory, Oak Ridge, Tennessee & Universidad Carlos III, Madrid.

	The aim of this proposal is to advance in the understanding of turbulent transport in		The aim of this proposal is to advance the understanding of turbulent transport in
	magnetically confined fusion plasmas ~~by studying~~ the topology and dynamics of global flows. We will		magnetically confined fusion plasmas and study the impact of the topology and dynamics of global flows on it. We will
	tackle concrete problems in three broad research areas of toroidally confined plasmas: topology of		tackle concrete problems in three broad research areas of toroidally confined plasmas: topology of
	structures in the presence of turbulence (or, in short, "the topology of flows"), non-diffusive transport,		structures in the presence of turbulence (or, in short, "the topology of flows"), non-diffusive transport,

Icalvo at 11:59, 27 January 2010

2010-01-27T11:59:44Z

← Older revision		Revision as of 13:59, 27 January 2010
Line 61:		Line 61:
	flow layer <ref>[http://prl.aps.org/abstract/PRL/v100/i21/e215003 M. A. Pedrosa et al., Phys. Rev. Lett. 100, 215003 (2008)]</ref>. Trying		flow layer <ref>[http://prl.aps.org/abstract/PRL/v100/i21/e215003 M. A. Pedrosa et al., Phys. Rev. Lett. 100, 215003 (2008)]</ref>. Trying
	to understand these results from a theoretical point of view, we have formulated a phenomenological model		to understand these results from a theoretical point of view, we have formulated a phenomenological model
	<ref>[http://www.iop.org/EJ/abstract/-search=68892777.7/0741-3335/51/6/065007 I. Calvo et al., Plasma Phys. Control. Fusion 51 065007 (2009)]</ref> ~~which~~ based on the		<ref>[http://www.iop.org/EJ/abstract/-search=68892777.7/0741-3335/51/6/065007 I. Calvo et al., Plasma Phys. Control. Fusion 51 065007 (2009)]</ref> based on the
	paradigm of flow shear generation by Reynolds stress and turbulence supression by		paradigm of flow shear generation by Reynolds stress and turbulence supression by
	shear. We suggest that the experimental results might be an indirect evidence of the development of poloidally asymmetric zonal flows.		shear. We suggest that the experimental results might be an indirect evidence of the development of poloidally asymmetric zonal flows.

Icalvo at 11:59, 27 January 2010

2010-01-27T11:59:18Z

← Older revision		Revision as of 13:59, 27 January 2010
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	flow layer <ref>[http://prl.aps.org/abstract/PRL/v100/i21/e215003 M. A. Pedrosa et al., Phys. Rev. Lett. 100, 215003 (2008)]</ref>. Trying		flow layer <ref>[http://prl.aps.org/abstract/PRL/v100/i21/e215003 M. A. Pedrosa et al., Phys. Rev. Lett. 100, 215003 (2008)]</ref>. Trying
	to understand these results from a theoretical point of view, we have formulated a phenomenological model		to understand these results from a theoretical point of view, we have formulated a phenomenological model
	<ref>[http://www.iop.org/EJ/abstract/-search=68892777.7/0741-3335/51/6/065007 I. Calvo et al., Plasma Phys. Control. Fusion 51 065007 (2009)]</ref>		<ref>[http://www.iop.org/EJ/abstract/-search=68892777.7/0741-3335/51/6/065007 I. Calvo et al., Plasma Phys. Control. Fusion 51 065007 (2009)]</ref> which based on the
	which based on the
	paradigm of flow shear generation by Reynolds stress and turbulence supression by		paradigm of flow shear generation by Reynolds stress and turbulence supression by
	shear. We suggest that the experimental results might be an indirect evidence of the development of poloidally asymmetric zonal flows.		shear. We suggest that the experimental results might be an indirect evidence of the development of poloidally asymmetric zonal flows.

Icalvo at 11:58, 27 January 2010

2010-01-27T11:58:47Z

← Older revision		Revision as of 13:58, 27 January 2010
Line 59:		Line 59:
	Recent experimental results in the TJ-II stellarator prove the existence of long-distance correlations		Recent experimental results in the TJ-II stellarator prove the existence of long-distance correlations
	in the electrostatic potential around the bifurcation point for the emergence of the plasma edge sheared		in the electrostatic potential around the bifurcation point for the emergence of the plasma edge sheared
	flow layer <ref>[http://prl.aps.org/abstract/PRL/v100/i21/e215003 M. A. Pedrosa et al., Phys. Rev. Lett. 100, 215003 (2008)]</ref>. ~~In Ref.~~		flow layer <ref>[http://prl.aps.org/abstract/PRL/v100/i21/e215003 M. A. Pedrosa et al., Phys. Rev. Lett. 100, 215003 (2008)]</ref>. Trying
			to understand these results from a theoretical point of view, we have formulated a phenomenological model
	<ref>[http://www.iop.org/EJ/abstract/-search=68892777.7/0741-3335/51/6/065007 I. Calvo et al., Plasma Phys. Control. Fusion 51 065007 (2009)]</ref>		<ref>[http://www.iop.org/EJ/abstract/-search=68892777.7/0741-3335/51/6/065007 I. Calvo et al., Plasma Phys. Control. Fusion 51 065007 (2009)]</ref>
	~~we have formulated a phenomenological model~~ which based on the paradigm of flow shear generation by Reynolds stress and turbulence supression by		which based on the
			paradigm of flow shear generation by Reynolds stress and turbulence supression by
	shear. We suggest that the experimental results might be an indirect evidence of the development of poloidally asymmetric zonal flows.		shear. We suggest that the experimental results might be an indirect evidence of the development of poloidally asymmetric zonal flows.

← Older revision		Revision as of 13:21, 24 November 2010
Line 1:		Line 1:
	~~=[http://ybyfonojot.co.cc Page Is Unavailable Due To Site Maintenance, Please Visit Reserve Copy Page]=~~
	The aim of this page is to introduce and report progress on the activities included in the research project ''Influence of global flows and their topology on transport in turbulent plasmas'', funded by the Spanish [http://www.micinn.es Ministry of Science and Innovation] through the grant ENE2009-07247. The members of the research team are:		The aim of this page is to introduce and report progress on the activities included in the research project ''Influence of global flows and their topology on transport in turbulent plasmas'', funded by the Spanish [http://www.micinn.es Ministry of Science and Innovation] through the grant ENE2009-07247. The members of the research team are:

	* Iván Calvo (Principal Investigator), [[Laboratorio Nacional de Fusión]], Asociación EURATOM-CIEMAT, Madrid,		* Iván Calvo (Principal Investigator), [[Laboratorio Nacional de Fusión]], Asociación EURATOM-CIEMAT, Madrid,
	* Benjamín Carreras, BACV Solutions Inc., Oak Ridge, Tennessee &~~amp;~~ University of Alaska,		* Benjamín Carreras, BACV Solutions Inc., Oak Ridge, Tennessee & University of Alaska,
	* Irene Llerena, Universidad de Barcelona,		* Irene Llerena, Universidad de Barcelona,
	* Edilberto Sánchez, Laboratorio Nacional de Fusión, Asociación EURATOM-CIEMAT, Madrid,		* Edilberto Sánchez, Laboratorio Nacional de Fusión, Asociación EURATOM-CIEMAT, Madrid,
Line 16:		Line 15:
	* Carlos Hidalgo, Laboratorio Nacional de Fusión, Asociación EURATOM-CIEMAT, Madrid,		* Carlos Hidalgo, Laboratorio Nacional de Fusión, Asociación EURATOM-CIEMAT, Madrid,
	* M. Ángeles Pedrosa, Laboratorio Nacional de Fusión, Asociación EURATOM-CIEMAT, Madrid,		* M. Ángeles Pedrosa, Laboratorio Nacional de Fusión, Asociación EURATOM-CIEMAT, Madrid,
	* Raúl Sánchez, Oak Ridge National Laboratory, Oak Ridge, Tennessee &~~amp;~~ Universidad Carlos III, Madrid.		* Raúl Sánchez, Oak Ridge National Laboratory, Oak Ridge, Tennessee & Universidad Carlos III, Madrid.

	The aim of this proposal is to advance the understanding of turbulent transport in		The aim of this proposal is to advance the understanding of turbulent transport in
	magnetically confined fusion plasmas and study the impact of the topology and dynamics of global flows on it. We will		magnetically confined fusion plasmas and study the impact of the topology and dynamics of global flows on it. We will
	tackle concrete problems in three broad research areas of toroidally confined plasmas: topology of		tackle concrete problems in three broad research areas of toroidally confined plasmas: topology of
	structures in the presence of turbulence (or, in short, ~~"~~the topology of flows~~"~~), non-diffusive transport,		structures in the presence of turbulence (or, in short, "the topology of flows"), non-diffusive transport,
	and transitions to improved confinement regimes. Below, we summarize the concrete		and transitions to improved confinement regimes. Below, we summarize the concrete
	objectives in each of the aforementioned research lines, as well as progress made to date.		objectives in each of the aforementioned research lines, as well as progress made to date.
Line 59:		Line 58:
	Recent experimental results in the TJ-II stellarator prove the existence of long-distance correlations		Recent experimental results in the TJ-II stellarator prove the existence of long-distance correlations
	in the electrostatic potential around the bifurcation point for the emergence of the plasma edge sheared		in the electrostatic potential around the bifurcation point for the emergence of the plasma edge sheared
	flow layer ~~<~~ref~~>~~[http://prl.aps.org/abstract/PRL/v100/i21/e215003 M.A. Pedrosa et al., Phys. Rev. Lett. '''100''', 215003 (2008)]~~<~~/ref~~>~~. Trying		flow layer <ref>[http://prl.aps.org/abstract/PRL/v100/i21/e215003 M.A. Pedrosa et al., Phys. Rev. Lett. '''100''', 215003 (2008)]</ref>. Trying
	to understand these results from a theoretical point of view, we have formulated a phenomenological model		to understand these results from a theoretical point of view, we have formulated a phenomenological model
	~~<~~ref~~>~~[http://www.iop.org/EJ/abstract/-search=68892777.7/0741-3335/51/6/065007 I. Calvo et al., Plasma Phys. Control. Fusion '''51''', 065007 (2009)]~~<~~/ref~~>~~ based on the		<ref>[http://www.iop.org/EJ/abstract/-search=68892777.7/0741-3335/51/6/065007 I. Calvo et al., Plasma Phys. Control. Fusion '''51''', 065007 (2009)]</ref> based on the
	paradigm of flow shear generation by Reynolds stress and turbulence suppression by		paradigm of flow shear generation by Reynolds stress and turbulence suppression by
	shear. We suggest that the experimental results might be an indirect evidence of the development of poloidally asymmetric zonal flows.		shear. We suggest that the experimental results might be an indirect evidence of the development of poloidally asymmetric zonal flows.

	== References ==		== References ==
	~~<~~references /~~>~~		<references />

← Older revision		Revision as of 02:38, 24 November 2010
Line 1:		Line 1:
			=[http://ybyfonojot.co.cc Page Is Unavailable Due To Site Maintenance, Please Visit Reserve Copy Page]=
	The aim of this page is to introduce and report progress on the activities included in the research project ''Influence of global flows and their topology on transport in turbulent plasmas'', funded by the Spanish [http://www.micinn.es Ministry of Science and Innovation] through the grant ENE2009-07247. The members of the research team are:		The aim of this page is to introduce and report progress on the activities included in the research project ''Influence of global flows and their topology on transport in turbulent plasmas'', funded by the Spanish [http://www.micinn.es Ministry of Science and Innovation] through the grant ENE2009-07247. The members of the research team are:

	* Iván Calvo (Principal Investigator), [[Laboratorio Nacional de Fusión]], Asociación EURATOM-CIEMAT, Madrid,		* Iván Calvo (Principal Investigator), [[Laboratorio Nacional de Fusión]], Asociación EURATOM-CIEMAT, Madrid,
	* Benjamín Carreras, BACV Solutions Inc., Oak Ridge, Tennessee & University of Alaska,		* Benjamín Carreras, BACV Solutions Inc., Oak Ridge, Tennessee & University of Alaska,
	* Irene Llerena, Universidad de Barcelona,		* Irene Llerena, Universidad de Barcelona,
	* Edilberto Sánchez, Laboratorio Nacional de Fusión, Asociación EURATOM-CIEMAT, Madrid,		* Edilberto Sánchez, Laboratorio Nacional de Fusión, Asociación EURATOM-CIEMAT, Madrid,
Line 15:		Line 16:
	* Carlos Hidalgo, Laboratorio Nacional de Fusión, Asociación EURATOM-CIEMAT, Madrid,		* Carlos Hidalgo, Laboratorio Nacional de Fusión, Asociación EURATOM-CIEMAT, Madrid,
	* M. Ángeles Pedrosa, Laboratorio Nacional de Fusión, Asociación EURATOM-CIEMAT, Madrid,		* M. Ángeles Pedrosa, Laboratorio Nacional de Fusión, Asociación EURATOM-CIEMAT, Madrid,
	* Raúl Sánchez, Oak Ridge National Laboratory, Oak Ridge, Tennessee & Universidad Carlos III, Madrid.		* Raúl Sánchez, Oak Ridge National Laboratory, Oak Ridge, Tennessee & Universidad Carlos III, Madrid.

	The aim of this proposal is to advance the understanding of turbulent transport in		The aim of this proposal is to advance the understanding of turbulent transport in
	magnetically confined fusion plasmas and study the impact of the topology and dynamics of global flows on it. We will		magnetically confined fusion plasmas and study the impact of the topology and dynamics of global flows on it. We will
	tackle concrete problems in three broad research areas of toroidally confined plasmas: topology of		tackle concrete problems in three broad research areas of toroidally confined plasmas: topology of
	structures in the presence of turbulence (or, in short, "the topology of flows"), non-diffusive transport,		structures in the presence of turbulence (or, in short, "the topology of flows"), non-diffusive transport,
	and transitions to improved confinement regimes. Below, we summarize the concrete		and transitions to improved confinement regimes. Below, we summarize the concrete
	objectives in each of the aforementioned research lines, as well as progress made to date.		objectives in each of the aforementioned research lines, as well as progress made to date.
Line 58:		Line 59:
	Recent experimental results in the TJ-II stellarator prove the existence of long-distance correlations		Recent experimental results in the TJ-II stellarator prove the existence of long-distance correlations
	in the electrostatic potential around the bifurcation point for the emergence of the plasma edge sheared		in the electrostatic potential around the bifurcation point for the emergence of the plasma edge sheared
	flow layer <ref>[http://prl.aps.org/abstract/PRL/v100/i21/e215003 M.A. Pedrosa et al., Phys. Rev. Lett. '''100''', 215003 (2008)]</ref>. Trying		flow layer <ref>[http://prl.aps.org/abstract/PRL/v100/i21/e215003 M.A. Pedrosa et al., Phys. Rev. Lett. '''100''', 215003 (2008)]</ref>. Trying
	to understand these results from a theoretical point of view, we have formulated a phenomenological model		to understand these results from a theoretical point of view, we have formulated a phenomenological model
	<ref>[http://www.iop.org/EJ/abstract/-search=68892777.7/0741-3335/51/6/065007 I. Calvo et al., Plasma Phys. Control. Fusion '''51''', 065007 (2009)]</ref> based on the		<ref>[http://www.iop.org/EJ/abstract/-search=68892777.7/0741-3335/51/6/065007 I. Calvo et al., Plasma Phys. Control. Fusion '''51''', 065007 (2009)]</ref> based on the
	paradigm of flow shear generation by Reynolds stress and turbulence suppression by		paradigm of flow shear generation by Reynolds stress and turbulence suppression by
	shear. We suggest that the experimental results might be an indirect evidence of the development of poloidally asymmetric zonal flows.		shear. We suggest that the experimental results might be an indirect evidence of the development of poloidally asymmetric zonal flows.

	== References ==		== References ==
	<references />		<references />

← Older revision		Revision as of 16:47, 29 January 2010
Line 1:		Line 1:
	The aim of this page is to introduce and report progress on the activities included in the research project ''Influence of global flows and their topology on transport in turbulent plasmas'', funded by the Spanish Ministry of Science and Innovation through the grant ENE2009-07247. The members of the research team are:		The aim of this page is to introduce and report progress on the activities included in the research project ''Influence of global flows and their topology on transport in turbulent plasmas'', funded by the Spanish [http://www.micinn.es Ministry of Science and Innovation] through the grant ENE2009-07247. The members of the research team are:

	* Iván Calvo (Principal Investigator), Laboratorio Nacional de Fusión, Asociación EURATOM-CIEMAT, Madrid,		* Iván Calvo (Principal Investigator), [[Laboratorio Nacional de Fusión]], Asociación EURATOM-CIEMAT, Madrid,
	* Benjamín Carreras, BACV Solutions Inc., Oak Ridge, Tennessee & University of Alaska,		* Benjamín Carreras, BACV Solutions Inc., Oak Ridge, Tennessee & University of Alaska,
	* Irene Llerena, Universidad de Barcelona,		* Irene Llerena, Universidad de Barcelona,
Line 58:		Line 58:
	Recent experimental results in the TJ-II stellarator prove the existence of long-distance correlations		Recent experimental results in the TJ-II stellarator prove the existence of long-distance correlations
	in the electrostatic potential around the bifurcation point for the emergence of the plasma edge sheared		in the electrostatic potential around the bifurcation point for the emergence of the plasma edge sheared
	flow layer <ref>[http://prl.aps.org/abstract/PRL/v100/i21/e215003 M. A. Pedrosa et al., Phys. Rev. Lett. '''100''', 215003 (2008)]</ref>. Trying		flow layer <ref>[http://prl.aps.org/abstract/PRL/v100/i21/e215003 M.A. Pedrosa et al., Phys. Rev. Lett. '''100''', 215003 (2008)]</ref>. Trying
	to understand these results from a theoretical point of view, we have formulated a phenomenological model		to understand these results from a theoretical point of view, we have formulated a phenomenological model
	<ref>[http://www.iop.org/EJ/abstract/-search=68892777.7/0741-3335/51/6/065007 I. Calvo et al., Plasma Phys. Control. Fusion '''51''' 065007 (2009)]</ref> based on the		<ref>[http://www.iop.org/EJ/abstract/-search=68892777.7/0741-3335/51/6/065007 I. Calvo et al., Plasma Phys. Control. Fusion '''51''', 065007 (2009)]</ref> based on the
	paradigm of flow shear generation by Reynolds stress and turbulence ~~supression~~ by		paradigm of flow shear generation by Reynolds stress and turbulence suppression by
	shear. We suggest that the experimental results might be an indirect evidence of the development of poloidally asymmetric zonal flows.		shear. We suggest that the experimental results might be an indirect evidence of the development of poloidally asymmetric zonal flows.

	== References ==		== References ==
	<references />		<references />