An Examination of 2D PIC reproductions of Reconnection.


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Michael Harrison Thomas Neukirch Michael Hesse 5 th Cambridge Workshop on Attractive Reconnection Terrible Honnef August 17-22, 2008. A Correlation of 2D PIC reproductions of Reconnection. Inspiration.
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Slide 1

Michael Harrison Thomas Neukirch Michael Hesse 5 th Cambridge Workshop on Magnetic Reconnection Bad Honnef August 17-22, 2008 A Comparison of 2D PIC reenactments of Reconnection

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Motivation To think about the reconnection procedure utilizing 2.5D PIC recreations beginning from distinctive starting conditions. To research the morphology of the off-slanting parts of the electron weight tensor as you go from frail to solid aide field utilizing 2.5D PIC recreations to contrast with past results. To examine this move utilizing Vlasov-Maxwell equilibria coming about because of dispersion capacities that augment past the Harris sheet. To incorporate in the examination a correlation to the reconnection procedure beginning from a self-predictable power free Vlasov-Maxwell equilibria. At present we do our reproductions with mass proportion = 1

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The Diffusion\'s Structure Region The electron mathematical statement of movement The y segment of the electric field can be composed as Is found that the angles of the off-inclining terms of the weight tensor are the prevailing commitments to at the X-Point (Hesse 1999, 2001, Pritchett 2001, and so on)

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Harris Sheet Cases Flux Normalized Reconnection Rate Reconnected Flux movies\harriscxz.mpg movies\harrisby05cxz.mpg movies\harrisby1cxz.mpg

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Pressure Tensor Component Comparisons movies\harrisby05pxye.mp4 movies\harrispxye.mp4 movies\harrisby1pxye.mp4

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Pressure Tensor Component Comparisons movies\harrispyze.mp4 movies\harrisby05pyze.mp4 movies\harrisby1pyze.mp4

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Anisotropic Bi-Maxwellian Distribution Function Have to discover occasional arrangements of the differential mathematical statements. The case gives hostile to parallel field setup – The case gives direct compel free harmony (Bobrova et al. 2001) Can utilize the parameter to change the shear field while keeping steady Can explore the move from a weight adjusted harmony to a power free balance.

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The Two Cases Numerical Solution

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Anisotropic Bi-Maxwellian Cases Flux Normalized Reconnection Rate Reconnected Flux movies\onlypy2cxz.mpg movies\onlypy2by05cxz.mpg movies\onlypy2by1cxz.mpg movies\bobcxz.mpg

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Pressure Tensor Component Comparisons movies\onlypy2pxye.mp4 movies\onlypy2by05pxye.mp4 Force-Free movies\onlypy2by1pxye.mp4 movies\bobpxye.mp4

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Pressure Tensor Component Comparisons movies\onlypy2pyze.mp4 movies\onlypy2by05pyze.mp4 Force-Free movies\onlypy2by1pyze.mp4 movies\bobpyze.mp4

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Conclusions We have researched the morphology of the off-corner to corner parts of the electron weight tensor as you make the move from an introductory condition with a powerless aide field through to an in number aide field including a direct constrain free beginning setup. In the introductory phases of reconnection the electron\'s structure weight tensor segments are comparative for every single starting condition when contrasted with the already known Harris sheet cases. It can be seen that on account of the intermittent equilibria coming about because of an anisotropic bi-Maxwellian conveyance work the electron\'s structure weight tensor segments are radically changed in the last stages because of association of the different current sheets. The development of the intermittent equilibria results in a practically finish change in the field\'s geometry from at first having a structure to having a structure toward the end.

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