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Bifurcation theory of the transition...

Kolesnikov, Roman A.

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Bifurcation theory of the transition to collisionless ion-temperature-gradient-driven plasma turbulence.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Bifurcation theory of the transition to collisionless ion-temperature-gradient-driven plasma turbulence./
Author:	Kolesnikov, Roman A.
Description:	164 p.
Notes:	Source: Dissertation Abstracts International, Volume: 66-11, Section: B, page: 6043.
Contained By:	Dissertation Abstracts International66-11B.
Subject:	Physics, Fluid and Plasma. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3198043
ISBN:	9780542419881

Bifurcation theory of the transition to collisionless ion-temperature-gradient-driven plasma turbulence.
Kolesnikov, Roman A.

Bifurcation theory of the transition to collisionless ion-temperature-gradient-driven plasma turbulence. - 164 p.

Source: Dissertation Abstracts International, Volume: 66-11, Section: B, page: 6043.

Thesis (Ph.D.)--Princeton University, 2006.

The collisionless limit of the transition to ion-temperature-gradient-driven plasma turbulence is studied using a dynamical systems approach. A model with ten degrees of freedom is used to identify the difference between the bifurcation patterns of collisional and collisionless systems. The importance of systematic bifurcation analysis for understanding the resulting difference in the dynamics of linearly damped and undamped systems is emphasized. A four-dimensional collisionless center manifold (CM) is studied and fixed points of its dynamics are identified and used to predict a "Dimits shift" of the threshold for turbulence due to the excitation of zonal flows. The exact value of that shift in terms of physical parameters is established for the model and the effects of higher-order truncations on the dynamics are studied. Possible effects of long-wavelength envelope modulations on the transition to turbulence scenarios in both collisional and collisionless cases are studied via application of multiple-scale analysis of the CM equations. The modulational effects on the dynamics are used to show that the system can undergo the transition to turbulence via the Benjamin-Feir mechanism. A collisionless version of the Ginzburg-Landau equation which captures both the Dimits shift phenomenon and the transition to turbulence above the upshift is derived.

ISBN: 9780542419881Subjects--Topical Terms:

1018402
Physics, Fluid and Plasma.

Bifurcation theory of the transition to collisionless ion-temperature-gradient-driven plasma turbulence.
LDR:02257nmm 2200265 4500 001 1828155
005 20061228142331.5
008 130610s2006 eng d
020 $a 9780542419881
035 $a (UnM)AAI3198043
035 $a AAI3198043
040 $a UnM $c UnM
100 1 $a Kolesnikov, Roman A. $3 1917059
245 1 0 $a Bifurcation theory of the transition to collisionless ion-temperature-gradient-driven plasma turbulence.
300 $a 164 p.
500 $a Source: Dissertation Abstracts International, Volume: 66-11, Section: B, page: 6043.
500 $a Adviser: John Krommes.
502 $a Thesis (Ph.D.)--Princeton University, 2006.
520 $a The collisionless limit of the transition to ion-temperature-gradient-driven plasma turbulence is studied using a dynamical systems approach. A model with ten degrees of freedom is used to identify the difference between the bifurcation patterns of collisional and collisionless systems. The importance of systematic bifurcation analysis for understanding the resulting difference in the dynamics of linearly damped and undamped systems is emphasized. A four-dimensional collisionless center manifold (CM) is studied and fixed points of its dynamics are identified and used to predict a "Dimits shift" of the threshold for turbulence due to the excitation of zonal flows. The exact value of that shift in terms of physical parameters is established for the model and the effects of higher-order truncations on the dynamics are studied. Possible effects of long-wavelength envelope modulations on the transition to turbulence scenarios in both collisional and collisionless cases are studied via application of multiple-scale analysis of the CM equations. The modulational effects on the dynamics are used to show that the system can undergo the transition to turbulence via the Benjamin-Feir mechanism. A collisionless version of the Ginzburg-Landau equation which captures both the Dimits shift phenomenon and the transition to turbulence above the upshift is derived.
590 $a School code: 0181.
650 4 $a Physics, Fluid and Plasma. $3 1018402
690 $a 0759
710 2 0 $a Princeton University. $3 645579
773 0 $t Dissertation Abstracts International $g 66-11B.
790 1 0 $a Krommes, John, $e advisor
790 $a 0181
791 $a Ph.D.
792 $a 2006
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3198043