QUASI-LINEAR TRANSPORT INFERRED FROM DENSITY FLUCTUATION SPECTRA
文献类型：期刊论文
| 作者 | BRAVENEC, RV ; ROSS, DW ; SCHOCH, PM ; BROWER, DL ; HEARD, JW ; HICKOK, RL ; TERRY, PW ; WOOTTON, AJ ; YANG, XZ |
| 刊名 | NUCLEAR FUSION
 |
| 出版日期 | 1991 |
| 卷号 | 31期号:4页码:687 |
| 关键词 | LASER SCATTERING TOKAMAK PLASMA MICROTURBULENCE CONFINEMENT TURBULENCE EDGE TEXT |
| ISSN号 | 0029-5515 |
| 通讯作者 | BRAVENEC, RV (reprint author), UNIV TEXAS,FUS RES CTR,AUSTIN,TX 78712, USA. |
| 中文摘要 | Expressions for the quasi-linear electrostatic electron particle and heat fluxes are derived in the wave frequency and electron collisionality regimes appropriate to the interior of the TEXT tokamak. These are expressed in terms of moments of the density fluctuation spectrum accounting for poloidal plasma rotation. Minimal assumptions are made as to the origin of the turbulence. The fluxes are then evaluated for an appropriate discharge condition on TEXT, using the density fluctuation frequency spectrum and equilibrium plasma potential measured by a heavy ion beam probe (HIBP). These are compared with the experimental fluxes for two measurements of the normalized rms poloidal wave number k-theta,rms-rho-s. For k-theta,rms-rho-s almost-equal-to 0.1, which is an upper bound of the HIBP two-point phase shift measurements, the electrostatic fluxes are negligible and the rms frequency of the fluctuations is much larger than the Doppler shifted electron diamagnetic drift frequency. However, for k-theta,rms-rho-s almost-equal-to 0.3, as supported by far-infrared (FIR) scattering and as expected for drift waves, the electrostatic fluxes are sufficient to account for the observed fluxes in the region of low collisionality. In addition, the rms frequency (consistent with FIR scattering) agrees with the Doppler shifted electron diamagnetic drift frequency. However, the computed fluxes fall increasingly short of the observed fluxes with increasing radius. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/51790]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | BRAVENEC, RV,ROSS, DW,SCHOCH, PM,et al. QUASI-LINEAR TRANSPORT INFERRED FROM DENSITY FLUCTUATION SPECTRA[J]. NUCLEAR FUSION,1991,31(4):687. |
| APA | BRAVENEC, RV.,ROSS, DW.,SCHOCH, PM.,BROWER, DL.,HEARD, JW.,...&YANG, XZ.(1991).QUASI-LINEAR TRANSPORT INFERRED FROM DENSITY FLUCTUATION SPECTRA.NUCLEAR FUSION,31(4),687. |
| MLA | BRAVENEC, RV,et al."QUASI-LINEAR TRANSPORT INFERRED FROM DENSITY FLUCTUATION SPECTRA".NUCLEAR FUSION 31.4(1991):687. |
入库方式： OAI收割
来源：物理研究所
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