Angular momentum transport modeling: achievements of a gyrokinetic quasi-linear approach

التفاصيل البيبلوغرافية
العنوان: Angular momentum transport modeling: achievements of a gyrokinetic quasi-linear approach
المؤلفون: Cottier, P., Bourdelle, C., Camenen, Y., Gurcan, O. D., Casson, F. J., Garbet, X., Hennequin, P., Tala, T.
المصدر: Plasma Physics and Controlled Fusion 56 (2013) 015011
سنة النشر: 2014
المجموعة: Physics (Other)
مصطلحات موضوعية: Physics - Plasma Physics
الوصف: QuaLiKiz, a model based on a local gyrokinetic eigenvalue solver is expanded to include momentum flux modeling in addition to heat and particle fluxes. Essential for accurate momentum flux predictions, the parallel asymmetrization of the eigenfunctions is successfully recovered by an analytical fluid model. This is tested against self-consistent gyrokinetic calculations and allows for a correct prediction of the ExB shear impact on the saturated potential amplitude by means of a mixing length rule. Hence, the effect of the ExB shear is recovered on all the transport channels including the induced residual stress. Including these additions, QuaLiKiz remains ~10 000 faster than non-linear gyrokinetic codes allowing for comparisons with experiments without resorting to high performance computing. The example is given of momentum pinch calculations in NBI modulation experiments.
نوع الوثيقة: Working Paper
DOI: 10.1088/0741-3335/56/1/015011
URL الوصول: http://arxiv.org/abs/1401.2332
رقم الانضمام: edsarx.1401.2332
قاعدة البيانات: arXiv
الوصف
DOI:10.1088/0741-3335/56/1/015011