2006
DOI: 10.1088/0029-5515/46/7/s05
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A global simulation study of ICRF heating in the LHD

Abstract: ICRF heating in the Large Helical Device is studied applying two global simulation codes; a drift kinetic equation solver, GNET, and a wave field solver, TASK/WM. Characteristics of energetic ion distributions in the phase space are investigated changing the resonance heating position; i.e. the on-axis and off-axis heating cases. A clear peak of the energetic ion distribution can be seen in the off-axis heating case because of the stable orbit of resonant energetic ions. The simulation results are also compare… Show more

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Cited by 46 publications
(45 citation statements)
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“…As the level of sophistication of the FP and wave solvers increased [14,15,16], the first attempts of selfconsistent modeling were made [10]. Nowadays, several toroidal full-wave codes have been interfaced with two-dimensional velocity-space Fokker-Planck solvers in order to take into account non-Maxwellian distribution functions in the wave propagation and absorption [17,18,19,20,21,22]. Here we present an extension of the FP quasilinear solver SSFPQL, coupled to the full-wave solver TORIC [23], to include in the kinetic equation a source describing NBI and an heuristic model of losses of energetic ions.…”
Section: Introductionmentioning
confidence: 99%
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“…As the level of sophistication of the FP and wave solvers increased [14,15,16], the first attempts of selfconsistent modeling were made [10]. Nowadays, several toroidal full-wave codes have been interfaced with two-dimensional velocity-space Fokker-Planck solvers in order to take into account non-Maxwellian distribution functions in the wave propagation and absorption [17,18,19,20,21,22]. Here we present an extension of the FP quasilinear solver SSFPQL, coupled to the full-wave solver TORIC [23], to include in the kinetic equation a source describing NBI and an heuristic model of losses of energetic ions.…”
Section: Introductionmentioning
confidence: 99%
“…Here we present an extension of the FP quasilinear solver SSFPQL, coupled to the full-wave solver TORIC [23], to include in the kinetic equation a source describing NBI and an heuristic model of losses of energetic ions. Compared with other successful approaches to the same problem, such as CQL3D-AORSA [17], GNET-TASK/WM [18], ORBIT-AORSA [21], and VENUS-LEMan [22], the SSFPQL-TORIC package requires relatively modest computing resources, without sacrificing any important aspect of the physics involved. Thus, with the help of scripts automatically driving the iterations, fully converged simulations with very high resolution in real and velocity space can be achieved in a few hours on a laptop.…”
Section: Introductionmentioning
confidence: 99%
“…2.1 are the same as the full analyses [3] where models of full analyses are used only in part b) explained in Sec. 2.1.…”
Section: Comparision Of Results Of the Developed Code With Full Analysesmentioning
confidence: 99%
“…The orbit of each fast ion is traced with the guiding center equations. In the acceleration term, a model [3] in which the fast ions are accelerated in a direction perpendicular to field line on the resonance layer is used for clarifying effects of position and shape of a resonance layer on the fast ion's behavior. In a collision with bulk plasma, the collision operator [4] which includes a pitch angle scatter and energy relaxation is adopted.…”
Section: Models In the Developed Codementioning
confidence: 99%
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