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000173217 1001_ $$0P:(DE-Juel1)5089$$aTokar, Mikhail$$b0$$eCorresponding Author$$ufzj
000173217 245__ $$a'Shell' approach to modeling of impurity spreading from localized sources in plasma
000173217 260__ $$aSingapore {[u.a.]$$bWorld Scientific$$c2014
000173217 264_1 $$2Crossref$$3print$$bWorld Scientific Pub Co Pte Lt$$c2014-10-01
000173217 264_1 $$2Crossref$$3print$$bWorld Scientific Pub Co Pte Lt$$c2014-10-01
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000173217 520__ $$aIn fusion devices, strongly localized intensive sources of impurities may arise unexpectedly or can be created deliberately through impurity injection. The spreading of impurities from such sources is essentially three-dimensional and nonstationary phenomenon involving physical processes of extremely different time scales. Numerical modeling of such events is still a very challenging task even by using most modern computers. To diminish the calculation time drastically a "shell" model has been elaborated that allows to reduce equations for particle, parallel momentum and energy balances of various ion species to one-dimensional equations describing the time evolution of radial profiles for several most characteristic parameters. The assumptions of the "shell" approach are verified by comparing its predictions with a numerical solution of one-dimensional time-dependent transport equations.
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000173217 7001_ $$0P:(DE-Juel1)7913$$aKoltunov, Mikhail$$b1
000173217 77318 $$2Crossref$$3journal-article$$a10.1142/s1793962314410050$$b : World Scientific Pub Co Pte Lt, 2014-10-01$$nsupp01$$p1441005$$tInternational Journal of Modeling, Simulation, and Scientific Computing$$v05$$x1793-9623$$y2014
000173217 773__ $$0PERI:(DE-600)2897753-1$$a10.1142/S1793962314410050$$nsupp01$$p1441005$$tInternational journal of modeling, simulation, and scientific computing$$v05$$x1793-9623$$y2014
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000173217 9141_ $$y2014
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