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Your search keyword '"Qiu, Yuefeng"' showing total 11 results
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11 results on '"Qiu, Yuefeng"'

1. Update of the 5 MW Beam-on-Target Requirements for improvement of the materials irradiation performance at IFMIF-DONES

Author

Podadera, Iván, Cara, Philippe, Álvarez-Castro, Irene, Anguiano, Marta, Arbeiter, Frederik, Becerril, Santiago, Bernardi, Davide, Castellanos, Jesús, Chauvin, Nicolas, Dézsi, Tamás, Díaz, Javier, Díez, Almudena, García, Mario, Gordeev, Sergej, Hernández, Rebeca, Luque, María, Macià, Llorenç, Maestre, Jorge, Mota, Fernando, Nitti, Francesco Saverio, Oliver, Concepción, Park, Jin-Hun, Poljak, Dragan, Prieto, Cayetano, Qiu, Yuefeng, Sánchez-Herranz, Daniel, Sanmartí, Manel, Serikov, Arkady, Serrano, Marta, Tadic, Tonci, Ternero, Marta, Torregrosa-Martin, Claudio, and Ibarra, Ángel

Published
2024
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11. Linear stability analysis of the electrostatic drift wave in the electron thermal internal transport barrier in EAST.

Author

Wang, Jie, Qiu, Yuefeng, and Wang, Shaojie

Subjects
*THERMAL electrons, *LINEAR statistical models, *ION temperature, *THERMAL instability, *FOURIER transforms, *RESONANCE effect, *COLLISION broadening, *SPECTRAL line broadening
Abstract

An alternative local electrostatic gyrokinetic eigenvalue code is developed for the ion-temperature-gradient-driven mode, the trapped-electron mode (TEM), and the electron-temperature-gradient (ETG)-driven mode. It numerically solves the linear eigenvalue problem for the electrostatic drift waves in the Fourier transformed space and benchmarks well with the HD-7 code and FULL code. The linear ETG and TEM instabilities in the electron thermal internal transport barrier (eITB) with dominant electron heating in experimental advanced superconducting tokamak are analyzed by using this code. The linear analysis results are consistent with that from the critical electron-temperature-gradient threshold analysis. Moreover, the sensitivity of ETG and TEM instabilities to parameters during the eITB formation has been investigated. For the typical eITB discharge, it is found that the instability of ETG mode is more sensitive to the stabilizing effect of the electron–ion temperature ratio (τe), while the instability of TEM is more sensitive to the destabilizing effect of η e . In addition, mixing length estimation of the turbulent transport in the eITB is also discussed, which suggests that the TEM may be saturated by other nonlinear effects than the resonance broadening. [ABSTRACT FROM AUTHOR]

Published
2024
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