文献类型：期刊文献

英文题名：Transport of poloidal momentum induced by ion cyclotron range of frequencies waves

作者：Zhang, Debing[1];Xu, Yingfeng[2];Wang, Shaojie[3];Zhang, Xianmei[1];Yu, Limin[1];Xue, Erbing[1];Zheng, Shuyu[1]

机构：[1]East China Univ Sci & Technol, Dept Phys, Shanghai 200237, Peoples R China;[2]Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China;[3]Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Peoples R China

年份：2020

卷号：27

期号：2

外文期刊名：PHYSICS OF PLASMAS

收录：;EI(收录号：20200708161123);WOS:【SCI-EXPANDED(收录号:WOS:000518014400002)】；

基金：This work was supported by the National Natural Science Foundation of China under Grant Nos. 11675176, 11675053, 11775265, 11875131, and 11875254, the National Magnetic Confinement Fusion Program of China under Grant No. 2015GB110005, and the Users with Excellence Project of Hefei Science Center CAS under Grant No. 2018HSC-UE009.

语种：英文

外文关键词：Distribution functions - Electric fields - Cyclotrons - Reynolds number - Geometry

摘要：By using the Lie-transform method, transport of the poloidal momentum induced by the ion cyclotron range of frequencies waves is calculated in the slab geometry. The poloidal momentum equation is derived in the cases with the equilibrium distribution function adopted as a Maxwellian distribution and an anisotropic distribution in the velocity space; in both cases, the poloidal Reynolds stress (PRS) is due to the correlation between the deviation of particle position and the deviation of particle energy, and the poloidal momentum source term is due to the correlation between the deviation of particle poloidal velocity and the deviation of particle energy. The PRS can be partly canceled out by the poloidal momentum source term, resulting in an effective PRS, which is related to the symmetry of poloidal spectrum and the order of cyclotron resonance. In the basic frequency cyclotron resonance case, by adopting the long-wave-limit approximation, the effective PRS is related to the gradient of electric field energy; this term dominates in the case with a strong asymmetry of poloidal spectrum. The calculation is extended to the case with a spatially inhomogeneous equilibrium distribution. The contribution from the inhomogeneity in the configuration space to the effective PRS is derived, which is found to be comparable to the part driven by the inhomogeneity in the velocity space in the case with a symmetric poloidal spectrum.